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This species of chiton grows to be about 7 cm (2.8 in) in length. The girdle is densely spiky and usually has a few black bands. Consumes: Hair Algae, Cyanobacteria, Diatoms and Turf Algae The surface of the valves (or...

Category: Sea Urchins Size: 1 to 3 in. (2 to 8 cm)   Depth: 0-130 ft. (0-40 m) Distribution: Caribbean, Bahamas, South Florida

The short and thick spines of Pencil Urchin Assorted Color Urchin radiate out from all around its body and are covered with basal plates. The spines develop algal growth, especially Coralline Algae, as the Eucidaris species ages. Nitrates and Copper in...

Porcelain crabs live in abundance in Pacific Coast tide pools. They hide under stones, between mussels in mussel beds, among sponges and tucked into tufts of algae. Safely concealed, they eat by sweeping feathery arms through the water like fine-meshed...

FREE ON ORDERS OF $250 or MORE - JUST ADD TO CART! Hailed by critics as “the world’s best reefkeeping magazine,” CORAL is written by leading aquarium experts and marine biologists, lavishly illustrated with breathtaking images, and...

This box is ideal for mangrove starts and freshwater plants to be able to establish their root system before planting in substrate. The slats allow for adequate flow around the mangrove roots and stalk. Held on with extremely strong N52 neodymium magnets...

This box is ideal for mangrove starts and freshwater plants to be able to establish their root system before planting in substrate. The slats allow for adequate flow around the mangrove roots and stalk. Held on with extremely strong N52 neodymium magnets...

Choose your own rack with the Modular Frag System! The PNW Modular Frag System allows the perfect placement and adjustablity for your prized frags! The base magnet and screw fit into multiple different top pieces from 1-3 frag holes to allow you to...

At only 8 inches by 6 inches, this aquarium has the ideal footprint for any small space without compromising on room for corals and inverts. The cube shape is perfect for a wide variety of creative microscapes, and the all-in-one style filtration has a...

Optimize Your Radion: The Right Lens Kit for Every Aquarium Ideal for Deep Aquariums or High Radion Mounting Higher PAR, Narrower Focus Compatible with G5 and G6 Radions The EcoTech Radion High Intensity Kit is a valuable accessory designed to...

Optimize Your Radion: The Right Lens Kit for Every Aquarium Ideal for Deep Aquariums or High Radion Mounting Higher PAR, Narrower Focus Compatible with G5 and G6 Radions The EcoTech Radion High Intensity Kit is a valuable accessory designed to...

 An incredibly minimal design packed with an array of full-spectrum RGB+W smart LED’s, SereneSun lets you focus attention on the life you lighting. Whether you are a traditional freshwater aquarist or planted tank hobbyist, SereneSun has you...

River Brown molded Manzanita driftwood branches add style, color, and depth to virtually any aquarium. Molded from actual curated pieces of Manzanita wood, its flexible, dense forking branches add a lifelike piece of nature to any aquarium. Combine...

The perfect light for any Nano aquarium up to 25 gallons!  Designed for Saltwater aquariums but it will also work great with freshwater tanks.  Producing eye-popping color and amazing color rendition, dynamic color control with...

Straightforward and safe water level controller for fresh and sea water with optical control sensor and independent thermal safety sensor. A constant water level keeps the salt concentration constant in seawater aquariums. Incl. Turbelle® High...

This 1 foot long HYDROS System Command Bus Cable allows HYDROS devices to communicate and even provide power to the Control 2 and Control 4.

PNW Custom Ornament Pop stand. You can hang it on your tree and show off your aquarium decor around your house, or use it in the tank for a festive accent! With holiday spirit cut outs including mistletoe and fall trees on the legs, as well as topped...

This Hybrid Filter Sock allows water to flow freely while still pulling out up to 200 micron small particles.  Does a great job cleaning but won't get clogged as easily as regular socks. Long Sock - 4" Diameter x 10" Length

Scolymia coral 3"+ in size.  Pictured coral is “WYSIWYG”. If you are looking to start buying coral online to add to your reef tank, this is the best choice. Scolymia are stationary. A vibrant coral with many different color morphs...

Scolymia coral 3/4" - 1"+ in size.  Pictured coral is “WYSIWYG”. If you are looking to start buying coral online to add to your reef tank, this is the best choice. Scolymia corals are stationary. A vibrant coral with many different...

Scolymia coral 3/4" - 1"+ in size.  Pictured coral is “WYSIWYG”. If you are looking to start buying coral online to add to your reef tank, this is the best choice. Scolymia corals are stationary. A vibrant coral with many different...

Scolymia coral 3/4" - 1"+ in size.  Pictured coral is “WYSIWYG”. If you are looking to start buying coral online to add to your reef tank, this is the best choice. Scolymia corals are stationary. A vibrant coral with many different...

OPEN - NO FACTORY BOX   Moss Green molded Manzanita driftwood branches add style, color, and depth to virtually any aquarium. Molded from actual curated pieces of Manzanita wood, its flexible, dense forking branches add a lifelike piece of nature...

Operated exclusively via the FluvalSmart App on your mobile device, Aquasky allows you to control the light output of red, green blue and super bright 6500K white LEDs for infinite color blends. Programmable, gradual 24-hour light cycle settings...

Free on Orders of $500 or More! L/XL (7 1/8” - 7 5/8”) Pacific Headwear Legacy Reclaim Baseball CapThe tried-and-true Trucker Snapback from Pacific Headwear is the definition of trucker mesh royalty. Featuring a pro-stitched finish and...

Free on Orders of $500 or More! L/XL (7 1/8” - 7 5/8”) Pacific Headwear 104C Trucker Mesh Baseball CapThe tried-and-true Trucker Snapback from Pacific Headwear is the definition of trucker mesh royalty. Featuring a pro-stitched finish and...

Sicce Black Backpack String Bag with Zipper

THIS ORNAMENT IS FREE WITH ANY ORDER OVER $100.  JUST ADD $100 WORTH OF PRODUCTS TO YOUR CART AND ADD ONE OF THESE AND IT WILL BE FREE. 'Tis the season to advertise your message on Holiday Ornaments. These Shatterproof Ornaments are proudly made in...

The Red Mandarin is a rare variation of the Blue Mandarin that differs by having a brilliant red body and almost entirely red pelvic and pectoral fins. It is a member of the family Callionymidae that grows to a maximum length of 4”. They originate...

FREE ON ORDERS OF $100 OR MORE! Provide FREE cutting-edge reef-keeping information to hobbyists to encourage responsible reef-keeping and sustainability of our hobby.  Reef Hobbyist Magazine is a reef-focused magazine that teaches hobbyists of all...

PE Flakes are a highly palatable, nutritionally complete fish food designed to enhance coloration and induce an energetic feeding response in all varieties of fish. Both saltwater and freshwater PE Flakes contain fresh PE Mysis as the leading ingredient...

Golden Ramen Torch Coral (2"+) in size.  Pictured coral is “WYSIWYG”. If you are looking to start buying coral online to add to your reef tank, this is the best choice. Torch coral are stationary. A vibrant coral with many different...

Bowser Chalice coral (1.5"+) in size.  Pictured coral is “WYSIWYG”. If you are looking to start buying coral online to add to your reef tank, this is the best choice. Chalice coral are a stationary. A vibrant coral with many different...

Coral pictured is very close to WYSIWYG. If you are looking to start buying coral online, to add to your aquarium, this is a great beginner Small Polyp Stoney coral. Season's Greetings montipora has a mint green structure with bright orange polyps. A...

This HYDROS Force Port Adapter Cable (72 inches long) is designed to directly connect the Kraken to power popular 24V aquarium equipment. The eight available orange 24V Force Ports on the Kraken can power DC pumps, lights, or any device where the power...

This HYDROS Drive Port Cable (72 inches long) is designed to connect to an available Drive port on a Kraken, X2, X4, XD, or other HYDROS Control directly to power small 12V devices such as ATO pumps, cabinet LED lights, fans, solenoids, and steering...

This HDYROS Force Port Power Cable is used to connect the Kraken to power a WaveEngine LE, WaveEngine, XD, or Control X10. This 6ft cable has two 4-pin GX12-4 fittings. One end attaches to any of the 8 Force Ports on the Kraken and the other end to the...

Flow Comes Full Circle Versatile Cross-Flow Pump Control with MyAI, Mobius, or MXM Four Easy-to-Use Pump Modes Ideal for Aquariums 20 Gallons and Larger Orbit pumps produce a unique type of flow.  Circling the aquarium with water...

Flow Comes Full Circle Versatile Cross-Flow Pump Control with MyAI, Mobius, or MXM Four Easy-to-Use Pump Modes Ideal for Aquariums 20 Gallons and Larger Orbit pumps produce a unique type of flow.  Circling the aquarium with water...

Big Pump Features in Pumps of All Sizes Control with MyAI, Mobius, or MXM Three Easy-to-Use Pump Modes Ideal for All-In-One Aquariums up to 15 Gallons Axis pumps offer full control, wireless smart device programming, DC motor quiet operation, and...