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Red Sea's Coral Colors ABCD Provides the 31 minor and trace elements required by corals: A – Halogens (I2, Br2, F2) B – Potassium & Boron C – Fe & 7 Complementary Metals D – 18 Bioactive Trace...

Calcium Test Kit Calcium is one of the most important elements in a reef aquarium. Reef invertebrates such as corals, crustaceans, mollusks and even some types of encrusting algae need calcium to...

Compatible with A160, A360 & AP700 (TWO Required for AP700) For rimmed and rimless tanks, the new Mounting Arms are fully adjustable, compatible with A160 and A360 series, and offer better cable...

Watch the Video, this stuff is INSANE!  The innovative, patented 3D fiber structure of sera crystal clear Professional very quickly removes even smallest particles above 10 µm (such as floating algae...

HI784-25 Marine Ammonia Checker HC (Handheld Colorimeter) Reagents are high-quality reagents for use with the HI784 Marine Ammonia (ppm) Checker HC. Reagents are clearly marked with the lot number...

Helix Ships on Tuesday - Wednesday from ALGAE BARN in CO to ensure the freshest possible product as we receive weekly Monday shipments of this. Not only does Coralline Algae in a Bottle speed up the...

Rowaphos is the leading phosphate removal media for marine and reef aquariums. Rowaphos will not leach any phosphates back into the water. RowaPhos is a unique man made ferric hydroxide material...

Masstick is a blend of diverse, all natural, self-production, highly technical compounds, providing natural and balanced nutrition for omnivorous fish and marine invertebrates. Comprised of raw...

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...

In the aquarium, enjoy richer colors, pop more fluorescence and create the ultimate balance between crisp and actinic. From its inception, Radion has set the standard for what full spectrum aquarium...

Serpent Starfish (Ophioderma spp.) - Colors Vary.  Most are brown/black in color. The Ultimate Reef Scavenger and Master of Stealth Introduce a touch of serpentine grace to your aquarium with the...

Prime Reef™ Flakes are a gourmet food, rich in seafood and zooplankton, for all reef aquariums. They contain a high inclusion of fresh seafood ingredients that mimic the nutritional value of a...

Without flow, fish and corals begin to die within 4 to 10 hours. Extreme weather can strike during any season, and we can’t always predict the outcome. In the event of a power outage, is your...

FMM – FLUID MONITORING MODULE IT DOES SO MUCH! This is just the module itself without and sensors. The FMM (Fluid Monitoring Module) is a module that connects to any Apex (Apex(2016), Apex Classic,...

Brightwell Aquatics NēoMarine Salt Mix creates an ideal marine environment for aquarium inhabitants by providing all major elements, all non-conservative (depleted by natural chemical and biological...

AcroPower supplies amino acids that corals need to build their skeletal architecture. Like other cnidaria, corals have a special ability to uptake dissolved amino acids across their entire surface...

NITRATE REEFER NYOS® REEFER test kits - taking measurements at the laboratory level at an attractive price Water properties as close to nature are the key for every aquarium's success. However,...

Although originally engineered for feeding the Goniopora genus, this product has been very well received in the hobby as an excellent food source for all filter feeding corals.The particle size of...

Royal Gramma  2" - 3" in size. Royal Gramma or Gramma Loreto is great for beginners and is one of the most popular reef safe fish in the hobby.  *Photo is a representation of the fish you will...

For Fresh and Saltwater Ammonia and ammonium are substances which should be converted rapidly into nitrite followed by nitrate and nitrogen gas.If this does not happen then the aquarium is not fully...

DŌS QuietDrive - Dose. Automate. Protect. New QuietZone Modes for Reduced Noise New Continuous Duty Modes Same Reliable DŌS Hardware Compatible with A2 and A3 Series Apex Controllers In the...

Black 11oz Mug with a Glossy Orange, Emblazoned with Our Logo. Inside Perfect for Your Favorite Beverage.  Dishwasher and Microwave Safe

The Python No Spill Clean an d Fill is a complete ready-to-use system which adapts easily to most faucets and makes water changes a breeze.  It drains as well as fills aquariums and will not disturb...

Customizable DIY Aquarium Net Cover COMES UNASSEMBLED IN A TUBE - YOU MUST CUT AND BUILD THIS YOURSELF STOCK PHOTO SHOWS WHAT CAN BE DONE WITH EXTRA PARTS SOLD SEPARATELY - THIS KIT ONLY MAKES A...

Swing check valve assists in blocking reverse flow and to allowing forward flow.

Design: Redesigning the plastics in the Hydra lineup has resulted in two major benefits: better efficiency and better aesthetics. Efficiency improvements reduce the demands on active cooling for...

Free with Orders of $150+ or More - Just Add to Cart Capturing nature's beauty with the perfect colouration, has never been so easy with the new ReefView Glasses.  See your corals in a whole new...

Marine fish eggs harvested from the cold North Atlantic Ocean, the source of the best nutrients. Shipping: Click Here to Learn More about Shipping of Live & Refrigerated Foods from Reef...

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NYOS® WILD GOJI is certified-organic, made of soft granules with bright red organic goji berries.  Bright red organic goji berries are what makes NYOS ® WILD GOJI special. This naturally soft,...

Lee's Convalescent Home/Specimen Container can be used as a holding tank, treatment tank or for observation. A multi-purpose, clear container with a 1" wide handle that can be hung on the side of...

Requires a HYDROS System to operate The HYDROS Temperature Sensor is an easy and affordable way to prevent your aquarium water from becoming too cold or too hot. It monitors the water...

Schedule 40 Bulkhead 1 1/2" Slip X Slip Black (Hole Size 2 3/8")

The Radion G5 Diffuser Accessories. Gentle caustics Further color mixing Further intensity balancing 2 Models one version for all XR15 models and one version for all XR30 models...

Compatibility built-in100% Backwards compatible with previous units. Our scraper fits the old blades, our blades fit the old scraper.

Red Sea REEF-SPEC™ Carbon is a premium, highly activated carbon specifically engineered for marine and reef aquariums to ensure the highest standard of water clarity and purity. It is the ultimate...

Easily extend the length of your No Spill Clean and Fill System.  Comes complete with one male and one female adapter for easy installation on any size Python system.

The Fire Shrimp is a beautiful deep blood red that will stand out in any reef aquarium. This shrimp is generally hardy and suitable for many aquariums. The tank should have structures that offer...

Yellow Watchman Gobies are fascinating reef fish. The Watchman name comes from their symbiotic relationship with pistol shrimp. The gobies are the lookouts and the shrimp are the burrow...