Christmas Event Starting Today! Use Code- Christmas50 for 50 Percent off! Christmas Gift Ladder Live now! Get rewards for your purchases! See our instagram for details-@aqua_sd

Saltwater Fish

Aqua SD offers a curated selection of fish great for beginners and experienced hobbyist. 

99 products


  • Six Line Wrasse (Pseudocheilinus hexataenia)

    Six Line Wrasse (Pseudocheilinus hexataenia)

    4 in stock

    Care Level  Easy Temperament Semi-Aggressive Diet Carnivore Reef Compatibility Yes Min Tank Size 55 gallons  Max Size Approx. 3"

    4 in stock

    $24.99

  • Pair Of Blue Damsel (Chrysiptera cyanea)

    Pair Of Blue Damsel (Chrysiptera cyanea)

    8 in stock

    Blue Damsels are considered an easy, beginner fish. They are hardy, small, and accepting of most food delivery methods.  Quick Stats: Care Level  Easy Temperament Semi Aggressive Diet Omnivore Reef Compatibility Yes Min Tank Size 30 gallons  Max Size Approx. 3" Diet Aquarium kept Blue Damsels readily eat most foods including flakes, pellets, frozen preparations like mysis, plankton, brine, live foods, and small amounts of algae. In the wild, they are observed to eat plankton, tunicates, and copepods.  Here at Aqua SD, we feed a mixture of Hikari Mysis Shrimp enriched in Selcon and Brightwell Garlic Power, a variation of pellets, Selcon enriched live brine, and small pieces of algae. In general, we recommend feeding vitamin enriched shrimp and providing several food options. We also recommend LRS Reef Frenzy and Reef Frenzy Nano for a high quality diverse feed.  Reef Compatibility and Temperament The Blue Damsel is regarded as reef safe. They are not known to predate on coral or most invertebrates.  Blue damsels are generally regarded as peaceful, but territorial. In the wild, they inhabit branching coral and/or live among the rubble of their shallow habitats. In a home aquarium it is best to provide them ample live rock to establish their territories.  Because they display high levels of territorialism, it is best to introduce them last to mitigate aggression. This technique has good success because it allows previous fish additions to establish their territories and places this feisty fish at the bottom of the fish hierarchy. It is best to pair this fish with other similar sized, semi-aggressive or larger fish such as  Royal Gramma  Clownfish Tangs Diamond Watchman Goby Bottom dwelling fish tend to be good tank mates for Blue Damsel as they don’t often occupy the same tank level as each other. In general, it is best to avoid docile, slow swimming fish. If kept in mated pairs, the Blue Damsel is known to display higher levels of territorialism and aggression.  Size, Lifespan, and Minimum Tank Size Blue Damsels have been recorded to reach sizes of 2.5 inches to 3 inches.  They usually display lifespans of 5+ years in captivity. The minimum recommended size for Blue Damsels is 30 gallons. Although small, their territorialism makes them unsuitable tankmates for smaller aquariums. Water Parameters The standard recommended parameters for mixed reefs applies to the Blue Damsel. Salinity: 1.020-1.025 s.g.  Temperature: 74ºF to 80ºF or 24ºC to 27ºC Alkalinity: 8-12 dKh pH: 8.1 to 8.4 Origin Chrysiptera cyanea can be found widely in the Indo-Pacific region. They inhabit lagoons and reef flats and other shallow habitats where many use the rubble and rock to branching coral like Acropora as shelter.  Family Blue Damselfish (Chrysiptera cyanea) belong to the family of Pomacentridae. Pomacentridae’s two subfamilies, Chrominae and Pomacentrinae contain most of the aquarium hobby species. Some common genera available for purchase in the Chrominae subfamily include Chromis and Dascyllus. The Pomacentrinae subfamily additionally contains Amphiprion, which includes clownfish, Chrysiptera, Abudefduf, Pomacentrus among others. Fun fact: Aqua SD’s state fish (California) hails from this family, the glorious Garibaldi (Hypsypops rubicunda). Sexual Dimorphism Chrysiptera cyanea females are all blue. The males often display yellow coloration around the mouth and their tails. The males are often sold as Orange Tail Blue Damselfish.  Common Names Blue Demosille, Blue Devil Damselfish, Sapphire Damselfish, Orange Tail Blue Damselfish (Male), Cornflower Sergeant-Major

    8 in stock

    $9.99

  • Saltwater Molly - Poecilia latipinna

    Saltwater Molly - Poecilia latipinna

    20 in stock

    Care Level  Moderate Temperament Peaceful Diet Omnivore Reef Compatibility Yes Min Tank Size 30 gallons  Max Size Approx. 3”

    20 in stock

    $9.99

  • Sale -33% Yellow “Target” Mandarin Goby (Synchiropus picturatus)

    Yellow “Target” Mandarin Goby (Synchiropus picturatus)

    1 in stock

    Mandarin Gobies require stable, established tanks with thriving copepod populations to survive. Feeding phtyo, adding more rock, sand beds, and macro algae can help maintain a good copepod population. Due to their small digestive tracts, they need food readily available at all times. Pellet trained mandarins can be fed on an auto feeder to provide ample feedings. Care Level  Difficult Temperament Peaceful Diet Carnivore Reef Compatibility Yes Min Tank Size 30 gallons  Max Size Approx. 3"

    1 in stock

    $44.99$29.99

  • Pearly Jawfish - Opistognathus aurifons

    Pearly Jawfish - Opistognathus aurifons

    2 in stock

      Care Level  Moderate Temperament Peaceful Diet Carnivore Reef Compatibility Yes Min Tank Size 30 gallons  Max Size Approx. 4”

    2 in stock

    $39.99

  • Lawnmower Blenny (Salarias fasciatus)

    Lawnmower Blenny (Salarias fasciatus)

    3 in stock

    Care Level  Easy Temperament Peaceful Diet Herbivore Reef Compatibility Yes Min Tank Size 30 gallons  Max Size Approx. 5"

    3 in stock

    $39.99

  • Humu Humu Trigger - (Rhinecanthus aculeatus)

    Humu Humu Trigger - (Rhinecanthus aculeatus)

    1 in stock

    Humu Humu Trigger (Rhinecanthus aculeatus), also known as the Humu Picasso Triggerfish and Picasso Triggerfish, is known to vocalize making "grunting" sounds. They enjoy a range of meaty foods, including clam, krill, squid, mysis, among other items. Hard shelled foods are necessary to help grind down and maintain healthy teeth. Care Level  Easy Temperament Aggressive Diet Carnivore Reef Compatibility Not Suitable Min Tank Size 180 gallons  Max Size Approx. 10"

    1 in stock

    $37.99

  • Sale -10% Tailspot Blenny (Ecsenius stigmatura)

    Tailspot Blenny (Ecsenius stigmatura)

    3 in stock

    Care Level  Easy Temperament Peaceful Diet Herbivore Reef Compatibility Yes Min Tank Size 10 gallons  Max Size Approx. 2.5"

    3 in stock

    $29.99$26.99

  • Yellowtail Blue Damsel - Chrysiptera sp

    Yellowtail Blue Damsel - Chrysiptera sp

    2 in stock

    Quick Stats: Care Level  Easy Temperament Semi Aggressive Diet Omnivore Reef Compatibility Yes Min Tank Size 30 gallons  Max Size Approx. 2.75"

    2 in stock

    $9.99

  • Coral Beauty Angelfish (Centropyge bispinosa)

    Coral Beauty Angelfish (Centropyge bispinosa)

    5 in stock

    Introducing the Coral Beauty Angelfish - Centropyge bispinosa, a stunning species renowned for its vibrant colors and elegant appearance. Found in the tropical waters of the Indo-Pacific region, particularly around coral reefs, this beautiful fish is a popular choice among marine enthusiasts for its striking markings and peaceful demeanor. Temperament & Captive Care: The Coral Beauty Angelfish is known for its peaceful temperament, making it an excellent addition to community aquariums. It thrives in well-established tanks with plenty of live rock formations and hiding spots. While generally hardy, it may be susceptible to certain diseases, so maintaining high water quality is essential for its well-being. Feeding: In the wild, Coral Beauty Angelfish primarily feed on algae, small crustaceans, and organic matter. In captivity, they readily accept a varied diet consisting of high-quality flakes, pellets, frozen foods such as mysis shrimp and brine shrimp, and even some types of algae. Supplementing their diet with vitamin-enriched foods helps ensure their nutritional needs are met. Aquarium Compatibility: Coral Beauty Angelfish are generally peaceful and can coexist with a variety of tankmates, including other small, peaceful fish and invertebrates. However, they may exhibit territorial behavior towards other angelfish species, so it's essential to provide ample space and hiding spots to reduce potential aggression. Immerse yourself in the beauty of the Coral Beauty Angelfish - a captivating species that adds both color and tranquility to any marine aquarium. With its graceful appearance and gentle demeanor, this remarkable fish is sure to be a highlight of your underwater world.

    5 in stock

    $52.99

  • Pair Of Ocellaris Clownfish - Amphiprion ocellaris

    Pair Of Ocellaris Clownfish - Amphiprion ocellaris

    8 in stock

    Introducing the Ocellaris Clownfish - Amphiprion ocellaris, a timeless classic and beloved favorite among marine enthusiasts. Renowned for its vibrant orange coloration and distinctive white stripes, the Ocellaris Clownfish is an iconic species that brings a touch of the tropical coral reef to any saltwater aquarium. Temperament & Captive Care: The Ocellaris Clownfish is known for its peaceful temperament and adaptability, making it an ideal choice for both beginner and experienced aquarists. Flourishing in a variety of saltwater aquarium setups, this resilient species thrives whether accompanied by anemones or in their absence, bringing a sense of vibrancy and charm to any aquatic environment. Feeding: As an omnivorous feeder, the Ocellaris Clownfish enjoys a diverse diet consisting of pellets, flake food, frozen Mysis shrimp, brine shrimp, and other aquarium fare. Their hearty appetite and willingness to accept various food types make them easy to care for and ensure their nutritional needs are met. Aquarium Host Anemones: While the Ocellaris Clownfish is famously associated with hosting in anemones, they can thrive just as well without them. However, if provided with suitable host anemones such as the Bubble Tip Anemone (Entacmaea quadricolor), they may form a symbiotic relationship, adding an extra layer of beauty and natural behavior to the aquarium. Immerse yourself in the enchanting world of the coral reef with the Ocellaris Clownfish - a delightful addition to any saltwater aquarium. With its iconic appearance and lively personality, it is sure to capture the hearts of aquarists and bring joy to any aquatic setting.

    8 in stock

    $44.99

  • Sale -20% Green Mandarin Goby (Synchiropus splendidus)

    Green Mandarin Goby (Synchiropus splendidus)

    2 in stock

    Care Level  Difficult Temperament Peaceful Diet Carnivore Reef Compatibility Yes Min Tank Size 30 gallons  Max Size Approx. 3"

    2 in stock

    $49.99$39.99

  • Sale -7% Yasa Hashe Goby - Stonogobiops sp.

    Yasa Hashe Goby - Stonogobiops sp.

    2 in stock

    Forms symbiotic relationship with Pistol Shrimps! Care Level  Easy Temperament Peaceful Diet Carnivore Reef Compatibility Yes Min Tank Size 10 gallons  Max Size Approx. 2.5”

    2 in stock

    $69.99$64.99

  • Sale -13% Ruby Red Dragonette (Synchiropus sycorax)

    Ruby Red Dragonette (Synchiropus sycorax)

    3 in stock

    Care Level  Difficult Temperament Peaceful Diet Carnivore Reef Compatibility Yes Min Tank Size 30 gallons  Max Size Approx. 3"

    3 in stock

    $39.99$34.99

  • Red Firefish Goby (Nemateleotris magnifica)

    Red Firefish Goby (Nemateleotris magnifica)

    2 in stock

    Firefish Goby (Nemateleotris magnifica) are considered peaceful and relatively easy fish to keep. They like to eat a variety of foods including frozen options like mysis and brine, pellets, and flakes.  Care Level  Easy Temperament Peaceful Diet Carnivore Reef Compatibility Yes Min Tank Size 20 gallons  Max Size Approx. 3"

    2 in stock

    $14.99

  • Blue Hippo Tang

    Blue Hippo Tang

    4 in stock

    Paracanthurus hepatus has a royal blue body, yellow tail, and black "palette" design. The lower body is yellow in the west-central Indian Ocean. It grows to 30 cm (12 in).Adults typically weigh around 600 g (21 oz) and males are generally larger than females. This fish is rather flat, like a pancake, with a circular body shape, a pointed snout-like nose, and small scales. 

    4 in stock

    $49.99 - $119.99

  • Engineer (Neon) Goby - Pholidychtys luecotaenia

    1 in stock

    $12.99

  • Pajama Cardinalfish (Sphaeramia nematoptera)

    Pajama Cardinalfish (Sphaeramia nematoptera)

    9 in stock

    Introducing the Pajama Cardinalfish - Sphaeramia nematoptera, a delightful species cherished for its colorful pajama-like pattern and peaceful nature. Native to the Indo-Pacific region, particularly around coral reefs and lagoons, this charming fish is a popular choice for marine aquariums, captivating enthusiasts with its beauty and tranquility. Temperament & Captive Care: The Pajama Cardinalfish is known for its peaceful temperament, making it an excellent choice for community aquariums. It is generally shy and reclusive, preferring to hide among rocks or corals during the day and becoming more active at night. It coexists peacefully with a variety of tank mates, including other peaceful fish and invertebrates. Feeding: As a carnivorous species, the Pajama Cardinalfish primarily feeds on small crustaceans and zooplankton in the wild. In captivity, it readily accepts a varied diet consisting of frozen or live foods such as brine shrimp, mysis shrimp, and finely chopped seafood. It may also accept high-quality pelleted or flaked foods designed for carnivorous marine fish. Aquarium Compatibility: Pajama Cardinalfish are generally compatible with a wide range of tank mates, although care should be taken to avoid housing them with aggressive or predatory species that may intimidate or harass them. They thrive in aquariums with plenty of hiding spots and dim lighting, mimicking their natural habitat among reef structures. Immerse yourself in the tranquility and beauty of the Pajama Cardinalfish - a charming species that adds a touch of elegance to your marine aquarium. With its colorful patterning and peaceful demeanor, it is sure to be a source of relaxation and joy in your underwater world.

    9 in stock

    $24.99

  • Pair Of Orange Storm - Amphiprion ocellaris

    Pair Of Orange Storm - Amphiprion ocellaris

    1 in stock

    Introducing the Orange Storm - Amphiprion ocellaris, a vibrant burst of color and energy in the marine world. This unique variant of the Ocellaris Clownfish lineage showcases vivid orange hues and dynamic patterns, promising to infuse saltwater aquariums with unparalleled vibrancy and charm. Temperament & Captive Care: The Orange Storm embodies the peaceful temperament and resilience typical of clownfish species. Flourishing in saltwater aquariums, whether with or without anemones, this captivating creature adapts effortlessly to various environments, bringing a sense of tranquility and liveliness to any aquatic habitat. Feeding: As an omnivorous feeder, the Orange Storm enjoys a diverse diet that mirrors its natural feeding habits. From pellets to flake food, frozen Mysis shrimp to brine shrimp, this energetic clownfish eagerly accepts an array of aquarium diets, ensuring robust health and vitality in captivity. Aquarium Host Anemones: Versatile and adaptable, the Orange Storm readily forms symbiotic relationships with a variety of host anemones. While the Bubble Tip Anemone (Entacmaea quadricolor) is a popular choice, this unique clownfish showcases compatibility with various host anemone species, including the Magnificent Sea Anemone (Heteractis magnifica), Sebae Anemone (Heteractis crispa), and Giant Carpet Anemone (Stichodactyla gigantea). Immerse yourself in the electrifying beauty of the ocean with the Orange Storm - Amphiprion ocellaris, an enchanting addition to any saltwater aquarium, guaranteed to inspire awe and admiration with its radiant presence.

    1 in stock

    $169.99

  • Sailfin tang (Zebrasoma velifer)

    1 in stock

    $54.99

  • Blackmouth Bicolor Chromis

    2 in stock

    $19.99

  • Powder Brown Tang

    Powder Brown Tang

    2 in stock

    2 in stock

    $74.99

  • Lemonpeel Angelfish - Centropyge flavissima

    Lemonpeel Angelfish - Centropyge flavissima

    2 in stock

    Introducing the Lemonpeel Angelfish - Centropyge flavissima, a stunning species celebrated for its vibrant colors and graceful presence. Native to the tropical waters of the Indo-Pacific region, particularly around coral reefs, this captivating fish enchants marine enthusiasts with its striking appearance and peaceful temperament. Temperament & Captive Care: The Lemonpeel Angelfish is known for its peaceful demeanor, making it an excellent addition to reef aquariums. It thrives in well-established tanks with ample live rock formations and hiding spots. While generally hardy, it may be susceptible to certain diseases, so maintaining optimal water quality and offering a varied diet are crucial for its well-being. Feeding: In the wild, Lemonpeel Angelfish primarily feed on algae, small crustaceans, and organic matter. In captivity, they readily accept a varied diet consisting of high-quality flakes, pellets, frozen foods such as mysis shrimp and brine shrimp, and even some types of algae. Providing a balanced diet enriched with vitamins and nutrients is essential for their health and vitality. Aquarium Compatibility: Lemonpeel Angelfish are generally peaceful and can coexist with a variety of tankmates, including other small, peaceful fish and invertebrates. However, they may exhibit territorial behavior towards other angelfish species, so it's crucial to provide ample space and hiding spots to minimize potential aggression. Immerse yourself in the beauty of the Lemonpeel Angelfish - a captivating species that adds both color and serenity to any marine aquarium. With its vibrant hues and graceful movements, this remarkable fish is sure to be a cherished centerpiece of your underwater world.

    2 in stock

    $64.99

  • Arc Eye Hawk Fish

    Arc Eye Hawk Fish

    1 in stock

    The Arc Eye Hawkfish is a bold and charismatic addition to any reef or fish-only aquarium, known for its vibrant orange body marked by a striking arc-shaped eye pattern. With its curious nature, it loves to perch on rocks and corals, surveying its surroundings like a tiny underwater predator, adding personality and movement to your tank. Hardy and easy to care for, this fish thrives in a well-established setup, making it a great choice for both beginners and seasoned aquarists looking for something lively and unique. If you’re after a fish with both beauty and attitude, the Arc Eye Hawkfish is definitely worth considering!

    1 in stock

    $24.99

  • Valentini Puffer - Canthigaster valentini

    Valentini Puffer - Canthigaster valentini

    1 in stock

    The Valentini Puffer, also known as Valentini Toby, Saddled Toby, or Black saddled Puffer, has a bird like beak. Its diet consists of meaty foods like clam, squid, mysis, among others. Hard shell foods like snails and clams are necessary to help maintain healthy Valentini teeth. Care Level  Moderate Temperament Peaceful Diet Carnivore Reef Compatibility with Caution Min Tank Size 30 gallons  Max Size Approx. 4”

    1 in stock

    $49.99

  • Fuzzy Dwarf Lion - Dendrochirus brachypterus

    Fuzzy Dwarf Lion - Dendrochirus brachypterus

    1 in stock

    The Dwarf Lionfish is known to be venomous. They administer their venom through their spines on their anal, pelvic, and dorsal fins.  The venom's proteins are broken up by heat, so it doesn't make into the blood stream. In case of sting, remove the spine and place the injury under running hot water for 30 minutes to neutralize the venom. Care Level  Moderate Temperament Semi-Aggressive Diet Carnivore Reef Compatibility with Caution Min Tank Size 50 gallons  Max Size Approx. 7”

    1 in stock

    $105.99

  • Sale -76% Australian Stripey (Microcanthus strigatus)

    Australian Stripey (Microcanthus strigatus)

    Quick, friendly, and brimming with personality, these rare Australian Stripeys are a delight to observe in any home aquarium. Preferring to school, these vibrant fish are peaceful yet far from timid. Be among the first hobbyists to enjoy a thriving group of Stripeys in your showcase aquarium! Although sometimes classified with Butterflyfish, the Australian Stripey is actually a Sea Chub, distinguished by its deep, compressed body and striking black and yellow slanting stripes. This species inhabits rocky and coral reefs in protected coastal and estuarine waters around Hawaii, Japan, China, New Caledonia, and Australia. As an omnivore, the Australian Stripey eagerly consumes frozen and freeze-dried diets containing algae, along with dried algae and vitamin-enriched frozen mysis and brine shrimp. Are stripey fish reef safe? These fish make awesome additions to any Fish Only tank or SPS reef. Listed as reef safe with caution, these fish may pick at LPS corals, but should leave SPS and soft corals alone. They have become of great interest for most hobbyists, because of their ability to voraciously decimate Aiptesia populations.

    $60.00 - $200.00

  • Blue Line Angelfish

    Blue Line Angelfish

    1 in stock

    Blue Line Angelfish (Chaetodontoplus septentrionalis) Size: Adult Medium 3 1/2" to 5"; Temperament: Semi-aggressive Reef Safe: With caution (may nip LPS, clams, zoas, and fleshy corals) Diet: Spirulina, nori, pellets, mysis, angelfish blend Difficulty: Intermediate Notes: Stunning electric-blue facial lines, strong eater, fully acclimated and active. Shipping: Overnight, live arrival guaranteed.

    1 in stock

    $399.99

  • Sale -20% Friant's Sea Starfish - Nardoa frianti

    Friant's Sea Starfish - Nardoa frianti

    1 in stock

    Like most sea stars, these have fairly simple needs: consistent food and stable water parameters, and lots of rock to grow algae on.

    1 in stock

    $49.99$39.99

  • Harlequin Shrimp (Hymenocera elegans)

    Harlequin Shrimp (Hymenocera elegans)

    7 in stock

    Introducing Harlequin Shrimp: Nature's Colorful Connoisseurs of Your Aquarium! Prepare to be mesmerized by the captivating beauty and unique behavior of the Harlequin Shrimp, a striking crustacean known for its vibrant colors and fascinating feeding habits. With its eye-catching appearance and intriguing lifestyle, this charismatic creature adds a touch of exotic flair to any aquarium while captivating observers with its captivating presence. Vibrant Colors: The Harlequin Shrimp boasts a dazzling array of colors, including vibrant shades of orange, blue, and purple, arranged in striking patterns reminiscent of a harlequin's costume. Its bold and vivid coloration adds a splash of vibrancy to your aquarium, creating a visually stunning focal point that captivates observers. Specialized Feeding Behavior: One of the most fascinating aspects of the Harlequin Shrimp is its unique feeding behavior. Unlike typical scavengers, Harlequin Shrimp are specialized predators that prey exclusively on starfish. With their powerful claws and voracious appetites, they target and immobilize their prey before consuming them, exhibiting a hunting strategy that is both efficient and precise. Aquarium Compatibility: While Harlequin Shrimp are primarily known for their starfish diet, they can coexist peacefully with a variety of tankmates, including small fish, corals, and other invertebrates. Their docile nature and non-aggressive behavior make them suitable additions to community tanks and reef setups, where they add a touch of exotic beauty and intrigue. Fascinating Lifestyle: Observe the fascinating lifestyle of the Harlequin Shrimp as it goes about its daily activities in the aquarium. From hunting and feeding to grooming and socializing, these captivating crustaceans exhibit a range of behaviors that offer insight into their unique biology and ecology, providing endless fascination for aquarium enthusiasts. Advanced Care Requirements: Due to their specialized diet and feeding behavior, Harlequin Shrimp require specific care and attention to thrive in captivity. Providing a steady supply of starfish and maintaining stable water parameters are essential for their health and well-being. Additionally, it's important to ensure that tankmates are compatible with their feeding habits to prevent any conflicts or aggression. Educational Opportunities: Observing the behavior of Harlequin Shrimp provides a valuable educational opportunity for aquarium enthusiasts of all ages. From their hunting techniques to their role in the ecosystem, they offer insights into the intricate dynamics of marine life and the importance of predator-prey relationships in aquatic environments. Transform Your Aquarium: Elevate the beauty and intrigue of your aquarium with the addition of Harlequin Shrimp. Experience the wonder, fascination, and exotic allure these captivating crustaceans bring to your underwater world. Dive into a realm of vibrant colors and captivating behavior with Harlequin Shrimp today! *Discounts Cannot be applied to inverts* *Inverts will ship with your next day order*

    7 in stock

    $44.99

  • Striped Damsel (3 Stripes) - Dascyllus aruanus

    3 in stock

    $6.99

  • Sale -65% Bicolor Angel

    Bicolor Angel

    2 in stock

    Care Level  Moderate Temperament Semi-Aggressive Diet Omnivore Reef Compatibility with Caution Min Tank Size 70 gallons  Max Size Approx. 4”

    2 in stock

    $99.99$34.99

  • Staghorn Damsel; Yellow - Amblyglyphidodon ternatensis

    Staghorn Damsel; Yellow - Amblyglyphidodon ternatensis

    4 in stock

    The threespot dascyllus (Dascyllus trimaculatus), also known as the domino damsel or simply domino, is a species of damselfish from the family Pomacentridae. It is native to the Indo-Pacific from the Red Sea and East Africa, to the Pitcairn Islands, southern Japan, and Australia, and can also be found in some parts of the Philippines. Its grey to black body has two lateral white spots and one between the eyes like domino hence the name; the threespot dascyllus grows up to 13 cm (5.1 in) in length. Coloration is somewhat variable; the spot on the forehead may be absent and the lateral spots very much reduced. It feeds on algae, copepods and other planktonic crustaceans.

    4 in stock

    $12.99

  • Vlamingii Tang (Naso vlamingii)

    Vlamingii Tang (Naso vlamingii)

    3 in stock

    Care Level  Moderate Temperament Semi Aggressive Diet Herbivore  Reef Compatibility Yes Min Tank Size 75 gallons  Max Size Approx. 6"

    3 in stock

    $49.99

  • Red Cushion Starfish - Culcita novaeguineae

    Red Cushion Starfish - Culcita novaeguineae

    1 in stock

    *Discounts Cannot be applied to inverts* *Inverts will ship with your next day order*

    1 in stock

    $49.99

  • Chocolate Chip Sea Star

    Chocolate Chip Sea Star

    3 in stock

    Doughboy Starfish (Choriaster granulatus) Introduce a unique and charming addition to your marine aquarium with the captivating Doughboy Starfish. Known for its distinctive plump appearance and soft pinkish-beige coloration, this starfish adds an element of whimsy and elegance to any aquatic setup. The Doughboy Starfish features a thick, rounded body with short, tapering arms that give it a dough-like shape, earning its endearing name. Its smooth texture and subtle color palette create a soothing visual contrast against the vibrant hues of coral and fish in your aquarium, making it a delightful focal point in any reef or marine display. Beyond its aesthetic appeal, the Doughboy Starfish is a practical addition to your tank. This species acts as a natural janitor, scavenging for uneaten food, detritus, and algae, helping to maintain a clean and healthy environment. Its calm and peaceful nature makes it compatible with a wide range of tank mates, including most fish, corals, and other invertebrates. Key Features: Unique Dough-Like Shape: A standout starfish with a plump, rounded body and short arms. Soft Pink-Beige Coloration: Adds a subtle yet striking aesthetic to your aquarium. Natural Scavenger: Helps keep your tank clean by consuming organic matter and detritus. Peaceful and Hardy: Thrives in community tanks with a variety of tank mates. Care Guidelines: Tank Size: Minimum 50 gallons Temperature: 72-78°F pH: 8.1-8.4 Salinity: 1.023-1.025 Diet: Omnivore – supplement its scavenging with pieces of shrimp, fish, or algae wafers to ensure optimal health. Enhance your aquarium’s beauty and ecological balance with the Doughboy Starfish. Its combination of unique charm and functionality makes it a favorite among marine hobbyists. With multiples available, now is the perfect time to welcome this delightful starfish into your underwater world!

    3 in stock

    $29.99

  • Sale -75% Assorted 6 Snail Invert Pack - Multiples Available

    $39.99$9.99

  • Sale -75% Assorted Beginner 6 Invert Pack - Multiples Available

    $39.99$9.99

  • Cushion Starfish (Culcita novaeguineae)

    Cushion Starfish (Culcita novaeguineae)

    6 in stock

    *Discounts Cannot be applied to inverts* *Inverts will ship with your next day order*

    6 in stock

    $29.99

  • Doughboy Starfish - Choriaster granulatus

    Doughboy Starfish - Choriaster granulatus

    3 in stock

    Doughboy Starfish (Choriaster granulatus) Introduce a unique and charming addition to your marine aquarium with the captivating Doughboy Starfish. Known for its distinctive plump appearance and soft pinkish-beige coloration, this starfish adds an element of whimsy and elegance to any aquatic setup. The Doughboy Starfish features a thick, rounded body with short, tapering arms that give it a dough-like shape, earning its endearing name. Its smooth texture and subtle color palette create a soothing visual contrast against the vibrant hues of coral and fish in your aquarium, making it a delightful focal point in any reef or marine display. Beyond its aesthetic appeal, the Doughboy Starfish is a practical addition to your tank. This species acts as a natural janitor, scavenging for uneaten food, detritus, and algae, helping to maintain a clean and healthy environment. Its calm and peaceful nature makes it compatible with a wide range of tank mates, including most fish, corals, and other invertebrates. Key Features: Unique Dough-Like Shape: A standout starfish with a plump, rounded body and short arms. Soft Pink-Beige Coloration: Adds a subtle yet striking aesthetic to your aquarium. Natural Scavenger: Helps keep your tank clean by consuming organic matter and detritus. Peaceful and Hardy: Thrives in community tanks with a variety of tank mates. Care Guidelines: Tank Size: Minimum 50 gallons Temperature: 72-78°F pH: 8.1-8.4 Salinity: 1.023-1.025 Diet: Omnivore – supplement its scavenging with pieces of shrimp, fish, or algae wafers to ensure optimal health. Enhance your aquarium’s beauty and ecological balance with the Doughboy Starfish. Its combination of unique charm and functionality makes it a favorite among marine hobbyists. With multiples available, now is the perfect time to welcome this delightful starfish into your underwater world!

    3 in stock

    $49.99

  • Sale -13% Royal Tuxedo Urchin (Mespilia globulus)

    Royal Tuxedo Urchin (Mespilia globulus)

    9 in stock

    The Blue Tuxedo Urchin is a great addition to any tank with algae issues. They are known for going after green hair algae. In absence of natural algae in your tank, and generally speaking, it is recommended to keep nori in the tank as a constant food source. Like other inverts, they do not tolerate copper. Care Level  Easy Temperament Peaceful Diet Herbivore Reef Compatibility with Caution Min Tank Size 20 gallons  Max Size Approx. 3” Please Note: Discounts cannot be applied to inverts. Inverts will ship with your next day order.

    9 in stock

    $39.99$34.99

  • Sale -17% Sand Sifting Starfish (Astropecten Polyacanthus)

    Sand Sifting Starfish (Astropecten Polyacanthus)

    1 in stock

    For best care results add them to an established system. They require deep sand beds and rock.  Care Level  Easy Temperament Peaceful Diet Omnivore  Reef Compatibility Yes Min Tank Size 55 gallons  Max Size Approx. 6” Please Note: Discounts cannot be applied to inverts. Inverts will ship with your next day order.  

    1 in stock

    $29.99$24.99

  • Sale -26% Bicolor Short Spine Pincushion Urchin

    AquaSD Bicolor Short Spine Pincushion Urchin

    2 in stock

    Introducing the Exquisite Rainbow Bicolor Short Spine Pincushion Urchin! Elevate your underwater world with the rare and radiant Rainbow Bicolor Short Spine Pincushion Urchin. Unlike any other, this captivating marine marvel showcases a breathtaking blend of vibrant pink hues, making it a prized gem for enthusiasts and collectors alike. Rare and Remarkable: Step into a realm of rarity with the Rainbow Bicolor Short Spine Pincushion Urchin. With its unique coloration and scarcity, this extraordinary creature stands out as a coveted addition to any marine habitat. Experience the thrill of owning a piece of oceanic artistry that's as rare as it is remarkable. Vibrant Pink Elegance: Immerse yourself in a kaleidoscope of color with the dazzling pink hues of this exquisite urchin. Its vibrant pigmentation adds a pop of vividness to your aquarium, transforming it into a vibrant underwater masterpiece that mesmerizes onlookers with its sheer beauty. Efficient Algae Control: Beyond its stunning appearance, the Rainbow Bicolor Short Spine Pincushion Urchin is a diligent caretaker of your aquatic environment. With its voracious appetite for algae, it effortlessly maintains the cleanliness of your tank, ensuring crystal-clear waters and a healthy ecosystem for your marine inhabitants. Gentle Guardian of Balance: Embrace the harmonious presence of the Rainbow Bicolor Short Spine Pincushion Urchin as it gracefully navigates your aquatic realm. With its peaceful demeanor and gentle nature, it harmonizes with a variety of tankmates, contributing to the equilibrium and vitality of your underwater community. Limited Availability: Don't miss the chance to own a piece of marine magnificence. The Rainbow Bicolor Short Spine Pincushion Urchin is available in limited quantities, making each specimen a cherished treasure waiting to adorn your aquarium. Secure yours today and elevate your aquatic experience to new heights! Transform Your Aquarium: Add a touch of rare elegance and vibrant color to your underwater sanctuary with the mesmerizing Rainbow Bicolor Short Spine Pincushion Urchin. Order now and immerse yourself in the splendor of this extraordinary marine jewel! Experience the wonder of the ocean in all its glory with the Rainbow Bicolor Short Spine Pincushion Urchin. Order now and let its radiant beauty illuminate your aquatic world! *Discounts Cannot be applied to inverts*�� *Inverts will ship with your next day order*

    2 in stock

    $46.99$34.99

  • Caribbean Nerite Snail

    AquaSD Caribbean Nerite Snail

    Introducing Caribbean Nerite Snails: Nature's Perfect Tank Cleaners! Enhance the beauty and cleanliness of your aquarium with Caribbean Nerite Snails. Renowned for their efficiency and striking appearance, these snails are prized additions to any freshwater or saltwater tank, providing natural algae control while adding a touch of elegance to your aquatic environment. Efficient Algae Eaters: Caribbean Nerite Snails are expert algae eaters, with a voracious appetite for unsightly algae growth. From green algae to diatoms and even tough-to-remove algae species, these diligent grazers will tirelessly patrol your tank, ensuring algae levels remain under control. Gentle Grazers: Unlike some other algae-eating species, Caribbean Nerite Snails are gentle grazers that won't harm live plants or disturb the substrate. They delicately scour surfaces, leaving no algae untouched while showing respect for delicate aquatic flora. Low-Maintenance Heroes: Caribbean Nerite Snails are incredibly low-maintenance, making them ideal for beginner and experienced aquarists alike. Simply introduce them into your tank, and they'll immediately begin their work, keeping algae in check without any additional care required. Stunning Shell Patterns: With their mesmerizing shell patterns in shades of black, gold, and ivory, Caribbean Nerite Snails are as beautiful as they are beneficial. Their unique markings add visual interest to your aquarium, creating a captivating focal point for observers. Peaceful Tankmates: These peaceful snails are compatible with a wide range of tankmates, from small fish to shrimp and other invertebrates. Whether you have a community tank or a species-specific setup, Caribbean Nerite Snails will thrive alongside their tankmates. Sustainable and Eco-Friendly: Caribbean Nerite Snails are sustainably sourced and environmentally friendly, making them a responsible choice for conscientious aquarists. By adding these eco-friendly cleaners to your tank, you're not only enhancing its beauty but also contributing to its ecological balance. Transform your aquarium into a cleaner, healthier, and more beautiful underwater paradise with Caribbean Nerite Snails. Experience the benefits of natural algae control and the unmatched elegance of these captivating snails. Dive into a world of cleaner waters and vibrant colors with Caribbean Nerite Snails today! *Discounts Cannot be applied to inverts* *Inverts will ship with your next day order*

    $2.99

  • Sale -20% Feather Duster (Sabellastarte sp.)

    Feather Duster (Sabellastarte sp.)

    14 in stock

    Introducing the Feather Duster: Nature's Living Art for Your Aquarium! Elevate the beauty and intrigue of your underwater world with the Feather Duster. Renowned for its graceful appearance and mesmerizing movements, this captivating marine invertebrate adds a touch of natural elegance to any saltwater aquarium, creating a stunning focal point that captivates both novice and experienced aquarists alike. Natural Beauty: Feather Dusters are exquisite creatures with delicate, feathery appendages that resemble a colorful plume or feather. Their vibrant colors and graceful movements make them a true sight to behold, adding visual interest and sophistication to your aquarium. Symbiotic Relationships: Feather Dusters are fascinating creatures that form symbiotic relationships with certain species of corals and live rock. They attach themselves to substrate or rockwork, extending their feathery appendages into the water to capture tiny food particles and plankton, while also filtering and oxygenating the surrounding water. Low-Maintenance Elegance: Feather Dusters are relatively low-maintenance, making them suitable for both beginner and experienced aquarists. Once established in your tank, they require minimal care, thriving in well-established reef environments with stable water parameters and ample water flow. Natural Filtration: In addition to their aesthetic appeal, Feather Dusters also contribute to the biological filtration of your aquarium. As filter feeders, they help remove organic matter and excess nutrients from the water column, promoting a cleaner and healthier aquatic environment for your fish and corals. Peaceful Tankmates: Feather Dusters are peaceful and compatible with a wide range of tankmates, including small fish, shrimp, and other invertebrates. Whether you have a community tank or a specialized reef setup, Feather Dusters coexist harmoniously with other inhabitants, making them an ideal addition to any aquarium. Sustainable and Eco-Friendly: Feather Dusters are sustainably sourced and environmentally friendly, making them a responsible choice for conscientious aquarists. By adding these natural filter feeders to your tank, you're not only enhancing its beauty but also contributing to the ecological balance of your aquarium ecosystem. Transform your aquarium into a living work of art with Feather Dusters. Experience the beauty, elegance, and natural filtration capabilities of these stunning marine invertebrates. Dive into a world of underwater sophistication with Feather Dusters today! *Discounts Cannot be applied to inverts* *Inverts will ship with your next day order*

    14 in stock

    $24.99$19.99

  • Purple Short Spine Pincushion Urchin

    Purple Short Spine Pincushion Urchin

    1 in stock

    Introducing the Majestic Purple Short Spine Pincushion Urchin: A Jewel of the Ocean Floor! Dive into a world of underwater wonder with the Purple Short Spine Pincushion Urchin. Renowned for its enchanting beauty and gentle presence, this captivating marine creature promises to elevate the elegance and allure of your saltwater aquarium or marine display. Exquisite Coloration: Adorned in regal shades of purple, the Purple Short Spine Pincushion Urchin exudes an aura of mystique and sophistication. Its striking coloration adds a touch of royalty to any aquatic setting, creating a mesmerizing focal point that captures the imagination of all who behold it. Efficient Algae Management: Harnessing the natural power of the ocean, this magnificent urchin serves as a diligent guardian against unsightly algae growth. With its voracious appetite for algae, it tirelessly patrols the aquarium, keeping rocks, glass, and substrate pristine and algae-free, ensuring optimal water quality and a thriving aquatic environment. Gentle Ecosystem Steward: Embrace the harmony of nature with the Purple Short Spine Pincushion Urchin as your aquatic ally. As a peaceful and unassuming creature, it coexists harmoniously with a variety of marine inhabitants, contributing to the balance and vitality of your underwater ecosystem with its gentle presence. Easy to Maintain: Experience the joys of marine aquarium ownership without the hassle. The Purple Short Spine Pincushion Urchin is remarkably easy to care for, requiring minimal maintenance and thriving in well-maintained saltwater aquariums with stable water parameters. Sit back, relax, and let this captivating urchin enrich your aquatic world effortlessly. Limited Availability: Unlock the splendor of the ocean with the Purple Short Spine Pincushion Urchin, available in limited quantities. Don't miss your chance to add this exquisite jewel of the sea to your underwater realm and elevate your marine experience to new heights! *Discounts Cannot be applied to inverts*  *Inverts will ship with your next day order*

    1 in stock

    $24.99

  • Blue Leg Reef Hermit

    Blue Leg Reef Hermit

    Introducing Blue Leg Hermit Crabs: The Dynamic Clean-Up Crew for Your Aquarium! Enhance the health and vibrancy of your tank with Blue Leg Hermit Crabs. Known for their industrious nature and striking appearance, these charismatic crustaceans are prized additions to any marine or reef aquarium, offering both practical benefits and visual appeal. Efficient Algae Control: Blue Leg Hermit Crabs are voracious algae eaters, with a keen appetite for unsightly algae growth on rocks, glass, and substrate. They methodically scour surfaces, grazing on algae and detritus, helping to maintain optimal water quality and a balanced ecosystem in your tank. Natural Detritus Cleaners: In addition to algae control, Blue Leg Hermit Crabs are natural detritus cleaners, tirelessly scavenging for organic matter and debris in your aquarium. They help prevent the buildup of waste and excess nutrients, promoting a cleaner and healthier environment for your aquatic inhabitants. Colorful and Active: With their vibrant blue legs and active movements, Blue Leg Hermit Crabs add a burst of color and energy to your tank. Watch as they scuttle across the substrate and rockwork, performing their important cleaning duties while entertaining observers with their lively antics. Peaceful Tankmates: These peaceful crabs are compatible with a wide range of tankmates, including small fish, shrimp, and other invertebrates. Whether you have a community tank or a specialized reef setup, Blue Leg Hermit Crabs coexist harmoniously with other inhabitants, making them an ideal addition to any aquarium. Easy to Care for: Blue Leg Hermit Crabs are relatively low-maintenance, making them suitable for both beginner and experienced aquarists. They thrive in well-established reef tanks with stable water parameters and ample hiding places, where they can forage and explore to their heart's content. Sustainable and Eco-Friendly: Blue Leg Hermit Crabs are sustainably sourced and environmentally friendly, making them a responsible choice for conscientious aquarists. By adding these beneficial crustaceans to your tank, you're not only enhancing its beauty but also contributing to the ecological balance of your aquarium ecosystem. Transform your aquarium into a cleaner, healthier, and more dynamic underwater world with Blue Leg Hermit Crabs. Experience the benefits of natural algae control and detritus cleanup, combined with the vibrant colors and lively movements of these delightful crustaceans. Dive into a world of cleaner waters and vibrant marine life with Blue Leg Hermit Crabs today! *Discounts Cannot be applied to inverts* *Inverts will ship with your next day order*

    $1.99

  • Sale -50% Yellow Sea Cucumber

    Yellow Sea Cucumber

    Introducing the Splendid Yellow Sea Cucumber: A Marvel of Underwater Elegance! Enrich your marine habitat with the vibrant charm of the Yellow Sea Cucumber. With its striking yellow hue and graceful form, this captivating creature serves as both a stunning centerpiece and a valuable contributor to the health of your aquarium ecosystem. Radiant Yellow Beauty: Dazzle your senses with the radiant brilliance of the Yellow Sea Cucumber. Its vibrant yellow coloration adds a burst of sunshine to your underwater world, creating a visually captivating display that brightens any aquatic environment. Natural Detritus Processor: Experience the efficiency of nature's cleanup crew with the Yellow Sea Cucumber. As a proficient detritivore, it diligently scavenges the substrate, consuming organic waste and leftover food particles. By doing so, it helps maintain pristine water conditions and reduces the risk of harmful nutrient buildup in your tank. Peaceful Coexistence: Embrace the tranquility of the Yellow Sea Cucumber as it gracefully moves through your aquarium. Known for its peaceful nature, this gentle creature harmonizes effortlessly with a variety of tankmates, making it an ideal addition to both community and reef setups. Easy Care and Maintenance: Enjoy hassle-free aquarium ownership with the Yellow Sea Cucumber. This low-maintenance species thrives in well-established marine tanks with stable water parameters. Simply provide ample hiding places and a nutritious substrate, and watch as it flourishes in its new aquatic home. Eco-Friendly Aquatic Ambassador: Support sustainable aquaculture practices by welcoming the Yellow Sea Cucumber into your aquarium. Sourced from responsible suppliers, this species is an eco-conscious choice for conscientious hobbyists who prioritize the health and well-being of marine ecosystems. Limited Availability: Don't miss the opportunity to add a touch of underwater elegance to your aquatic landscape. The Yellow Sea Cucumber is available in limited quantities, making each specimen a rare and cherished addition to your marine collection. Transform your aquarium into a haven of beauty and balance with the enchanting Yellow Sea Cucumber. Order now and experience the splendor of this remarkable marine marvel firsthand! *Discounts Cannot be applied to inverts*�� *Inverts will ship with your next day order*

    $39.99$19.99

Aqua SD offers a curated selection of fish great for beginners and experienced hobbyist. 

Our Mission

“Specializing in Rare and Unusual Corals” is our mantra!  We are constantly searching for new and exciting corals that will thrive in your reef and make your tank one of a kind!

Aqua SD has been shipping corals country wide since 2007!  All corals are shipped overnight to get your corals to you as quickly as possible.  We make sure to use the best packing materials available, so your corals arrive safely.

You’ll find the largest selection of WYSIWYG (What You See Is What You Get) corals and inverts on our website.  We are constantly updating the site with new and exciting products.  Please make sure to subscribe to our Newsletter to keep up to date for special promotions and releases

All Corals and Inverts are thoroughly inspected and quarantined before they are made available for sale.  We are constantly monitoring these animals and making sure they are getting the best care possible.  Our husbandry staff is always happy and willing to answer any questions you may have.

At Aqua SD, our main goal is to ensure customer satisfaction.  If you have any issues or concerns, please do not hesitate to reach out to us.  We hope to make your reef aquarium full of color and life!

© 2025 Aqua SD, Powered by Shopify

    • Amazon
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • USDC
    • Visa

    Login

    Forgot your password?

    Don't have an account yet?
    Create account

    ×

    Please wait...

    Make An Offer

    Descriptive image text
    Descriptive image text