The HI782 Marine Nitrate High Range Colorimeter is specifically designed to quickly and accurately determine high levels of nitrate for saltwater aquariums and marine applications. With a digital read out, there is no more struggling to determine colors...

We are pleased to announce our NEW HI98319 waterproof salinity and temperature tester! Waterproof and floats! Includes 4x of the Salinity Calibration Fluid Packets. Automatic Calibration – A 35.00 ppt solution is used for calibration and...

Extreme Accuracy. Easy to Test in 4 Steps - Zero the Checker, Add a regent to your water sample, Insert the Vile in the Checker, Read the Numbered Results. BOOM EASY. ZAIR. Zero, Add, Insert, Read. Includes reagents for 6x tests. The Hanna...

Nitrification is the biological oxidation of ammonia (ammonium ion) into nitrite followed by the oxidation of the nitrites to nitrates. The first step of this 2-step process is carried out in an aquarium by nitrifying bacteria. During this quick process,...

Algae scrubbers have been successfully used for many years to combat excess nutrients via the growth of natural algaes. Due to the efficiency of algae scrubbers, many aquarists no longer need expensive nitrate and phosphate removal media to combat...

Algae scrubbers have been successfully used for many years to combat excess nutrients via the growth of natural algaes. Due to the efficiency of algae scrubbers, many aquarists no longer need expensive nitrate and phosphate removal media to combat...

Now with Stand Included! Algae scrubbers have been successfully used for many years to combat excess nutrients via the growth of natural algaes. Due to the efficiency of algae scrubbers, many aquarists no longer need expensive nitrate and phosphate...

Scrubber Stand Now Included! Algae scrubbers have been successfully used for many years to combat excess nutrients via the growth of natural algaes. Due to the efficiency of algae scrubbers, many aquarists no longer need expensive nitrate and phosphate...