Aquarium Water Tests & Kits

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

Dymax PH Buffer 4.0 is a certified traceable to NIST standard reference material for PH meter calibration.

Calibration solution for conductivity 1.41 mS/cm. Please disguard the portion of solution used after each test. Contains 50 ml. Part # PL-0059

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

Dymax pH Meter features LCD display with back light feature and two decimal place accuracy. Usable for long term monitoring (indoor) with a magnet ...