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REFILL KIT FOR HI772   Get accurate results for your saltwater aquarium with our simple handheld colorimeter.   Our alkalinity c...

Refill Kit for Hanna Instruments PO4 Checker - pack of 25

Hanna Instrument Phosphorus Ultra Low Range Reagents - HI736 (25 units)

Refill Kit for Hanna Instruments Checker Marine Alkalinity Colorimeter

Specially formulated for the use with reverse osmosis water Red Sea is please to announce the addition of an innovative new salt formula designed t...

Contains 3x 2-month reagent kits  (based on the default testing schedule of 4-Alk/2-Ca/2-Mg per day).  The 2month reagent kit has at least 240 alka...

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

Enriched formulation. Optimum effectiveness. Formulated specially for use in reef aquariums, Reef Crystals® contains essential ocean reef elements ...

Red Sea NO3:PO4-X Contains a unique complex of carbons that are used by nutrient-reducing bacteria. Each carbon is utilized by different strains of...

IC-GEL™ is a cyanoacrylate paste that is extremely thick which comes in an applicator tube like toothpaste. It has the same bonding and curing t...

Overview: Complex system of non-pathogenic aerobic and anaerobic microbes, as well as natural enzymes, specifically formulated to establish biolog...

Salifert Calcium Test Kit Our calcium test is capable in resolving the calcium content in 10 mg/L steps. The color change is sharp and facilitates ...

Instant Ocean® Sea Salt is the most carefully formulated and universally preferred sea salt in the world. The #1 choice of hobbyists, public aquari...

REEF ENERGY PLUS  All-In-One Coral Superfood An all-in-one superfood that will have your corals thanking you, delivering better growth, higher resi...

HI782-25 Marine Nitrate High Range Reagents are for use with the HI782 Marine Nitrate High Range Checker HC. They are manufactured in our state...

NOTE: Images are for display purposes only, this is NOT a kit of 3

Salifert Magnesium Test Kit The Salifert magnesium test is very straightforward and does not suffer from calcium and strontium interferences when w...

Salifert Alkalinity Test Kit The Salifert KH/Alk test is very straightforward. It measures in sufficient small steps of 0.1 meq/L or 0.3 dKH with a...

NOTE: This DI-MB-CI-10HC is the same as DI-MC-10HC except it is color indicating (CI) OVERVIEW: SuperDI™ Color Indicating Mixed Bed DI Ca...

Salifert Nitrate Test Kit Many nitrate test kits are prone to amine interference. This can give results much lower than actual. The Salifert nitrat...

SINGLE Hanna 35 ppt Salinity Calibration Solution Sachet HI70024P is a premium quality 35.00 ppt salinity calibration solution that is NI...

NOTE: Images are for display purposes only, this is NOT a kit of 3