Frag Plugs with a Dual Purpose Extremely porous Stimulates coral growth Serves as bio-media Completely inert-- wont affect water chemistry Rapidly colonized by beneficial bacteria Stable ceramic base that will not decompose over...

FREE with Orders Over $250 Based on our Benereef formula, now in a pellet form for convenient feeding and automatic feeder use. Benepellet Reef is scientifically engineered to optimize nutrients for your entire reef system. Bioavailability an nutrient...

FREE with Orders Over $250 Based on our Benereef formula, Benepellet LPS is scientifically engineered to optimize nutrients for LPS corals, Anemones, Crustaceans, Azoox corals, Fish and Invertebrates. Bioavailability and nutrient absorption help...

FREE with Orders of $250 or More Benereef is not just a coral food, it is engineered for the entire reef. Our patent-pending pre and probiotic formula is unlike anything else on the market. It looks different and smells different because it is different...

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...

Trusted by Professionals, Perfected for Your Reef Aquarium! Synthetic Blend for Superior Reef Health Clean and Dissolves Quickly Proven and Trusted Choice for Over 50 Years Makes approx. 160 Gallons of solution at 1.024 specific gravity Discover...

UNUSED CUSTOMER RETURN Bubble Magus SP4000 Replacement Pump.  New Bubble Magus SP pump, quiet and more efficient than the atman pump.

UNUSED CUSTOMER RETURN Take your equipment organization to the next level with custom controller boards from Adaptive Reef. The Neptune Systems Controller Board is a modular wire management system with cutouts and spacing specifically organized around...

DAMAGED BOX The Kessil A360XE Tuna Blue LED Aquarium Light is the latest offering from Kessil. The new Kessil A360XE Tuna Blue LED Aquarium Light is 15% brighter than the A360X. Also features improved color and communication...

Boost Filtration & Save Space with Adaptive Reef Perfect for Both Small and Large Aquarium Systems Holds Two Different Media Types Separately in a Single Reactor Choose Between 4" and 5" Models Adjustable Design with Precision Control for...

Boost Filtration & Save Space with Adaptive Reef Perfect for Both Small and Large Aquarium Systems Holds Two Different Media Types Separately in a Single Reactor Choose Between 4" and 5" Models Adjustable Design with Precision Control for...

Elevate Your Aquarium's Tech Setup! Halo-Lit & Face-Lit 3D Logo for a High-Tech Look Full RGB Lighting Customization to Match Your Setup Ample Space for Equipment with Easy Access Designed for Effortless Wire Management Quick-Release Latches...

Elevate Your Aquarium's Tech Setup! Halo-Lit & Face-Lit 3D Logo for a High-Tech Look Full RGB Lighting Customization to Match Your Setup Ample Space for Equipment with Easy Access Designed for Effortless Wire Management Quick-Release Latches...

Organize Your Aquarium Tech in Style! Removable Magnetic Clear Door for Easy Access Interchangeable Faceplates to Customize Your Setup Built-In Wire Management System for a Clean Look Controllable RGB LEDs to Add Vibrant, Customizable...

Organize Your Aquarium Tech in Style! Removable Magnetic Clear Door for Easy Access Interchangeable Faceplates to Customize Your Setup Built-In Wire Management System for a Clean Look Controllable RGB LEDs to Add Vibrant, Customizable...

  The Pithos crab is a small crab species with a bulbous body and cupped claws that is native to the Caribbean, Gulf of Mexico, and Atlantic: Appearance Pithos crabs have a molted brown, tan, or...

  The long-spined sea urchin, also known as the black sea urchin, is a marine invertebrate with a hard shell, long spines, and a vital role in reef ecosystems:      Appearance The...

  Harlequin shrimp are popular with aquarists, but they require a specialized diet and special care:      Diet They need a steady supply of live starfish, such as Asterias rubens for adults and...

  Pom pom crabs are small, brightly colored crabs that are known for carrying anemones in their claws:      Size: Pom pom crabs are about 0.5-1 inch wide on average...

  *WARNING CHOCOLATE CHIP STARFISH ARE NOT REEF SAFE*   The chocolate chip starfish is a sea star with a number of distinctive features, including:      Appearance Chocolate chip starfish are named...

The electric blue hermit crab (Calcinus elegans) is a rare, tropical crab with striking blue and orange colors:      Appearance The electric blue hermit crab has bright blue legs with black...

PACKAGE DAMAGED - RAIL FINE - MISSING END CAPS HMS 24" (25.5") Horizontal Rail (Arm Tank Mounts, and Fixture Brackets Sold Separately) AI's HMS Rail Mounting System Great for mounting multiple lights on one rail across your tank.  The Hydra...

DAMAGED BOX - LID UNTOUCHED Preassembled SafeScreen™ Aquarium Mesh Screen Lid - For Nuvo Fusion 25 Lagoon We’ve Got You Covered - Made to fit the Nuvo Fusion 25 Lagoon AIO Aquarium (Model: 0517-P) Provide protection for your livestock and...

Magnetic Clip with SAQ Logo The triangular clip magnet can hold a stack of paper while hanging on to a magnetic surface! Great for use when acclimating fish and our drip kit. Textured black rubberized handle provides a sturdy grip on these powerful...

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...

USED - TESTED - WORKS Shark SKIMMER 150 and Shark SKIMMER 300 are modern internal skimmers with a very compact and innovative Shark design for direct integration into marine biotopes. They come from the latest development and knowledge in the field of...

UNUSED CUSTOMER RETURN The Kessil A360XE Tuna Sun LED Aquarium Light is the latest offering from Kessil. The new Kessil A360XE Tuna Sun LED Aquarium Light is 15% brighter than the A360X. Also features improved color and communication...

The nutrient ratios for corals and sponges in reef tanks are ideal when nitrates and phosphates are present in the lowest concentrations. Tropic Marin® NP-Bacto-Balance uses a mix of select organic carbon compounds and suitable inorganic...

Product Description: Tropic Marin® Classic sea salt is an ideal foundation for the care and growth of all marine organisms in an aquarium. The salt is made up of all of the macro elements and trace elements in a natural balance, contained...

NOTE: The specific gravity is temperature dependent. With increasing temperature the specific gravity decreases. Therefore, the measured water temperature should be 25 °C / 77 °F to obtain a correct result.For an exact, reliable measure of...

Average 2"+ in size.   The strawberry conch, also known as the tiger conch, is a large, peaceful, and hardy snail that is a good addition to a saltwater aquarium:      Appearance Strawberry conchs...

Average size of 2" - 5"+  Horseshoe crabs are unique-looking arthropods with a hard exoskeleton, a long tail, and a horseshoe-shaped body:      Appearance Horseshoe crabs have a dark brown or olive...

The sexy shrimp, also known as Thor amboinensis, is a small shrimp with a distinctive appearance and unusual movements:      Size: Sexy shrimp are small, growing to about 1.5–13...

The coral banded shrimp (Stenopus hispidus) is a saltwater shrimp with a striking red and white color pattern, long antennae, and a prickly body texture:      Size: Can grow up to 2.4 inches...

Appearance Arrow crabs have a medium golden brown body with stripes of brown, black, yellow, or gold. They have 10 legs, eight for walking and two pincers, and their legs can be more than three times the length of their body. Their...

We only SHIP Real INDO Live Rock with Fedex Priority Overnight Shipping.  There is a 5 pound minimum on this item. Pricing includes Fedex Priority Overnight Shipping - This Rock is nice and deserves the same treatment that corals do. Because...

PERFECT CONDITION.  OUTSIDE BOX HAS A SHIPPING LABEL AND WRITING. The perfect solution to help organize and control the rat's nest of wires that most aquariums suffer from.  This board was created to easily allow you to mount an apex, power...

Revolutionize Your Flow with the Next-Gen Jump Gyre Advanced Crossflow Technology: Eliminates dead spots for consistent water movement. Customizable Water Flow: Multiple modes and adjustable flow direction. Innovative Control...

Revolutionize Your Flow with the Next-Gen Jump Gyre Advanced Crossflow Technology: Eliminates dead spots for consistent water movement. Customizable Water Flow: Multiple modes and adjustable flow direction. Innovative Control...

Pro-size all-in-1 NANO system The MAX NANO G2 XXL is a pro-size reef with all the NANO perks, including a Plug & Play setup, REEF-SPEC lighting, superior circulation and filtration systems, ReefATO+ and NanoMat-ready rear...