The Armored Algae Bulldozer Unleash a prehistoric powerhouse on your aquarium's nuisance algae with the Fuzzy Chiton. This unique and incredibly hardy mollusk is not a snail, but a living piece of ancient biology. Featuring a distinctive shell made of...

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 Striking & Powerful Algae Grazer Introduce a bold, prehistoric look to your aquarium with the incredible Pencil Urchin. Unlike the delicate, needle-like spines of other urchins, the Pencil Urchin boasts thick, blunt, crayon-like spines that give...

Coloration can vary - these are not always white, brown is common as well. 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...

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...

If you have a RMS Tank Mount System, the RMS XR30 Adapter provides the necessary hardware to easily update your RMS Tank Mount for use with your new Radion XR30 LED light. Installation of the hardware only takes a few minutes and you'll be up and running...

Compatible with both G5 and G6 Radion XR30s. Multi-Light Radion Mounting System - Slide Mount The Multi-Light RMS is a modular and customizable Radion LED mounting solution for all XR15 and XR30 systems, Gen 5 and earlier. The RMS Slide Mounts connect...

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...

Custom color from your couch. Now you can shift the color of your aquatic environment without shifting your body with the industry’s first freshwater-optimized, full spectrum RGB+White aquarium light with wireless remote control. Super bright 6500K...

Custom color from your couch. Now you can shift the color of your aquatic environment without shifting your body with the industry’s first freshwater-optimized, full spectrum RGB+White aquarium light with wireless remote control. Super bright 6500K...

Custom color from your couch. Now you can shift the color of your aquatic environment without shifting your body with the industry’s first freshwater-optimized, full spectrum RGB+White aquarium light with wireless remote control. Super bright 6500K...

Custom color from your couch. Now you can shift the color of your aquatic environment without shifting your body with the industry’s first freshwater-optimized, full spectrum RGB+White aquarium light with wireless remote control. Super bright 6500K...

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...

Special Reef Sand is a a coarse mix of 1-3 mm size aragonite sand sustainably harvested from pristine sites in the Western Pacific and Caribbean. Sterilized then packaged with live BioPronto, naturally occurring beneficial microorganisms that help to...

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.

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

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...

OEM 100W power supply for the COR-20 Return Pump

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...

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...

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...

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...

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...

Tangerine Leptastrea coral 1"+ in size.  Tangerine Leptastrea are stationary encrusting. A vibrant coral with many different color morphs. They are a fast growing coral for beginners and experts alike.  Expertise: Beginner Lighting: Low...