Aquarium Water Tests & Kits

This kit combines the Silicate, Phosphate, and Iodine/Iodide kits into one kit. MultiTest™ Reef Special performs over 75 tests and contains refe...

Marine pH should be 8.2—8.4. Tanks dosed with limewater may go as high as 8.6. Natural sea water has a total alkalinity of 2—3 meq/L, but aquar...

Highly accurate and stable calibration fluid for calibrating pH meters to a pH value of exactly 4.00 at room temperature. Do not reuse the amount o...

The accuracy of all electrodes is dependent upon their calibration. To ensure accurate readings, all electrodes need to be calibrated at regular in...

Easy to use, the density can be easily measured. Precise water inlet helps prevent air bubbles, increasing accuracy of measurementApplication: Hold...

Regular testing and maintenance of water parameters is important for the health of fish, plants and coral. Aqua One test kits make it easy to balan...

Sera Glass Test Vial single

Dymax Refractometer Instant Salinity reading High quality Corrosive resistance Maximum accuracy

75 titration tests each for borate, carbonate & magnesium. It is designed specifically for seawater. The test is based on titration of magnes...

Fritz Aquatics Master Test Kit contains four essential test kit formulas in one convenient box.  Wide Range pH Testing the pH of your aquarium wat...

For use with up to 2 electrodes, easily attaches to the aquarium. The level of submergence of the electrodes is fully adjustable.

For use with up to  4 electrodes, easily attaches to the aquarium. The level of submergence of the electrodes is fully adjustable.

Aqua One has your CO2 requirements covered with the Nano CO2 Set. The set comes with everything you need to boost aquatic plant growth! Carbon diox...

Nutrafin Test Tubes Twin Pack. No retail packaging. 

Testing the pH of your aquarium water regularly to make proper adjustments is crucial to keep your fish, plants, and other aquarium animals health...

Excess nutrients can lead to poor water quality very quickly. If not controlled, phosphate (PO4) can rapidly build up in aquariums from fish waste ...

Nitrite is produced continually during the ammonia cycle by nitrifying bacteria in the biological filter. While not as immediately toxic as ammoni...

Nitrate is considered the non-toxic end product of the ammonia cycle. While not directly a problem for fish at low levels, excess nitrates can cau...

General hardness (GH) is commonly overlooked in many aquariums, but this parameter plays a very important role in your aquariums overall health. G...

Copper is commonly used in aquariums to treat external parasitic infections, like Ich and velvet. It is crucial to closely monitor copper used in a...

Calcium (Ca2+) is vital to many biological functions. In saltwater aquariums, calcium should remain in the proper ionic balance along with alkalin...

Ammonia is one of the most important parameters to monitor in aquariums because any amount can be toxic to livestock if it is not addressed right ...

Carbonate hardness, or alkalinity (KH), is the measure of both carbonates and bicarbonates present in the water. The KH value of your water is imp...

CO2 Indicator Refill Solution 15ml