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Get accurate alkalinity test results without the hassle of preparing your own reagent. CoralVue's pre-prepared 0.02N reagent is perfect for the HYDROS and Focustronic Alkatronic testing machines. Ready-to-Use Reagent Specifically for...

This box has everything you need to make a beautiful aquascape and there are so many ways to arrange them for a 5-15 Gallon Tank. 15-25 Gallon Kit Contains: 1x Donut 1x Branch Cluster 2x Arches 1x Ledge 8 lbs of Original Liferock...

This box has everything you need to make a beautiful aquascape and there are so many ways to arrange them for a 5-15 Gallon Tank. 5-15 Gallon Kit Contains: 1x Branch Cluster 1x Arch 1x Ledge 5x lbs of Original Liferock Base...

Tridacna maxima has the widest distribution of any Tridacnid species. It is found from the Red Sea, throughout the Indo-Pacific region, to Australia and Polynesia. It usually occurs in shallow, clear water, high current areas where they are known to form...

This incredibly rare clownfish was impossible to see outside of its natural habitat until just very recently. Found exclusively in the isolated reefs around Oman, there have only been a handful of wild collected specimens ever exported. These captive...

Nuvo Roller - Automatic Fleece AIO Filter Keep your aquarium crystal clear without the hassle of cleaning or changing filter socks. Introducing the Innovative Marine Nuvo Roller. The first Innovative Marine automatic fleece AIO filter. No more taking...

Nuvo Roller - Automatic Fleece AIO Filter Keep your aquarium crystal clear without the hassle of cleaning or changing filter socks. Introducing the Innovative Marine Nuvo Roller. The first Innovative Marine automatic fleece AIO filter. No more taking...

• EDEN X 80 Includes: Aquarium, Cabinet, & FLED 46• EDEN X 80 COMPLETE Includes: Aquarium, Cabinet, Space EKO 300(2) & FLED 46 Bigger Amazingly Clear Display Panels Crafted with ultra-clear glass, you'll enjoy an...

The EDEN series delivers elegantly simple freshwater and planted aquarium setups. With thoughtfully designed lighting and layout recommendations, they’re perfect for low- to mid-tech planted environments. Ultra-Clear glass, quality cabinetry, and...

Building on the MARINE X platform, the MARINE EX line incorporates a low-profile overflow system paired with professional-grade acrylic sumps. This enhancement provides a sleeker display cabinet, advanced filtration layout, and marine-grade cabinetry for...

Building on the MARINE X platform, the MARINE EX line incorporates a low-profile overflow system paired with professional-grade acrylic sumps. This enhancement provides a sleeker display cabinet, advanced filtration layout, and marine-grade cabinetry for...

Building on the MARINE X platform, the MARINE EX line incorporates a low-profile overflow system paired with professional-grade acrylic sumps. This enhancement provides a sleeker display cabinet, advanced filtration layout, and marine-grade cabinetry for...

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...

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 Ultimate Bubble Algae Destroyer Meet the Pitho Crab, the unsung hero of the reef aquarium clean-up crew. Often mistaken for its cousin, the Emerald Crab, the Pitho Crab is a specialized herbivore with an incredible appetite for one of the most...

The Ultimate Algae Predator For the aquarist facing a serious nuisance algae problem, the Black Long Spine Sea Urchin is one of nature's most effective and relentless solutions. With its dramatic, jet-black spines that can grow to incredible lengths,...

The Painted Starfish Hunter Arguably one of the most beautiful and ornate invertebrates in the ocean, the Harlequin Shrimp is a true living jewel. With a creamy white body adorned in a breathtaking mosaic of purple, pink, or blue spots, and unique,...

Pom pom crabs are about 0.5-1 inch wide on average. The Tiny Boxer of the Reef Prepare to be charmed by one of the most unique and fascinating creatures in the marine aquarium hobby: the Pom Pom Crab. This minuscule crustacean, also known as the Boxer...

A Stunning Centerpiece for Fish-Only Tanks Instantly recognizable and undeniably beautiful, the Chocolate Chip Starfish is one of the most iconic stars in the marine world. Its plump, beige body is adorned with dark brown to black tubercles that look...

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...

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...

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...

The Ultimate Sand Sifting Powerhouse (2"+ Average Size) Meet the workhorse of the clean-up crew with the heart of a showpiece invertebrate: the Strawberry Conch. This essential sand-sifter is renowned for its tireless dedication to keeping your sandbed...

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 Dancing Jewel of Nano Reefs (VERY SMALL) Add a splash of personality and vibrant motion to your aquarium with the one-and-only Sexy Shrimp. Famous for its unique behavior, this tiny shrimp holds its abdomen high in the air and sways rhythmically...

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...

OPEN BOX RETURN Having adequate filters for a small size aquarium is crucial to keep the livestock healthy. With the new SHARK PRO NANO we are offering the best compact option with EXTRA flow and MAX filtration capacity for small aquariums. Two models...