Best Selling Products

  NEW LIFE SPECTRUM NATUROX SERIES MARINE FISH FORMULA, sinking pellet food 150-300G  Marine fish are very sensitive to the diet you feed them. Nu...

2-month reagent kit (based on the default testing schedule of 4-Alk/2-Ca/2-Mg per day).  The reagent kit has at least 240 alkalinity tests and 120 ...

  Two Little Fishies Julian Sprung's SeaVeggies Green Seaweed (30g)   Super nutritious Natural Green Seaweed sheets. Ideal for marine herbivores su...

DOW FILMTEC™ Next Generation Home RO Elements Dow's next generation elements have been precisely designed and will replace existing DOW ...

Hole size chart for schedule 40 standard bulkheads (the black ones)   bulkhead Size: 1/2" = Hole Size: 1 1/8" or 1 1/4" bulkhead Size: 3/4" = Hole ...

Dosing Instructions: 1 mL will raise the alkalinity of 25 gallons by 0.036 meq/l (0.1dKH)   Dose in a 1:1:1 ratio with Red Sea Reef Foundation A a...

Get accurate results for your saltwater aquarium with our simple handheld colorimeter.   Our alkalinity colorimeter bridges th...

Introducing the new Nero 5 with improved magnet by Aqua Illumination   Up to 3,000gph   Don’t be fooled by its compact demeanor! The Nero 5 punches...

Aquarium Filter Floss - 14oz bag

Arag-Alive!™ PRE-RINSED LIVE MARINE SUBSTRATE   When setting up an aquarium with CaribSea's live products please do not rinse the substrate! The su...

Red Sea Coral Color A: A complex of halogens (Iodine, Bromine and Fluorine). The halogens act both as antioxidants and oxidative agents within the ...

NEW QD wet side ALSO compatible with older ES model. Vortech MP40QQ Wet Side Assembly. Includes the entire wet side vortech pump assembly

Flatworm eXit itself is quite safe to fish and invertebrates. However, the body juice of flatworms can be toxic to some reef inhabitants when prese...

Seachem Reef Glue is easy to use and cures quickly. It is thicker than typical 'glu'e and more like a gel, holding frags in place while it cures in...

2500G Bulk Calcium Chloride (Makes 5 gallons of solution) - extremely pure pharmaceutical grade - phosphates free - nitrates free - dissolves easil...

Filter socks are the most convenient form of mechanical filtration. They remove excess food, detritus, organic waste, dust, and other particul...

Red Sea Coral Color C: A complex of 8 “light” metals that includes Iron, Manganese, Cobalt, Copper, Aluminum, Zinc, Chrome and Nickel. These micr...

Double stitched nylon filter medium bags. For use with any type of granular filter media such as: phosphate, ammonia, nitrate or silica removers or...

3/4" x 3" Ball-Socket Flare Nozzle (Loc-Line) 

Have fish that jump? A screen top is an excellent way to prevent your fish from carpet surfing yet still allow light to penetrate in to your aqu...

Red Sea Coral Color B: A complex of Potassium and Boron. Potassium plays an essential role in the transportation of coral nutrients within the soft...

Bulk Magnesium Chloride / Sulfate Mix Makes 1 gallon of magnesium solution Formulated with 5 parts magnesium chloride and 3 parts magnesium sulfat...

specially created for fantastic results in reef and marine aquariums. The new proprietary blend of premium, low-dust pelletized carbon and high cap...