Aquarium Water Tests & Kits

The API® Freshwater Master Test Kit measures the 4 most important levels in freshwater aquariums quickly and accurately, including pH, high range p...

API® 5-in-1 Aquarium Test Strips are the quick and easy way to test the 5 most important water parameters – pH, KH, GH, nitrate, and nitrite – in o...

The Alert Combo™ pack combines Ammonia Alert® (1 card) and pH Alert® (1 card). Ammonia Alert® and pH Alert® are almost half the size of competing p...

When keeping freshwater fish and plants, the general hardness (GH) and carbonate hardness (KH) of aquarium water should match their natural habitat...

API® TEST TUBES are compatible with any aquarium or pond water test kits and are perfect for testing more water parameters at one time. Option of o...

Ammonia Alert™ is an innovative color device for continuously detecting and monitoring toxic free ammonia. A sensor changes reversibly from yellow ...

Monitoring co2 levels in your planted aquarium is very important for the health of your plants and fish. This kit includes a high quality CO2 Drop ...

The API® Saltwater Master Test Kit measures the 4 most important saltwater parameters – pH, ammonia, nitrite, and nitrate – to enable easy testing ...

Fluval Sea Hydrometer provides an accurate and convenient method of measuring specific gravity and salt level in marine aquariums. Regular testing ...

CO2 Indicator Solution for use with CO2 Indicators / Drop Checkers. 10ml.

pH is the measure of acidity of water.  A pH reading of 7.0 is neutral.  A pH higher than 7.0 is alkaline, and a pH lower than 7.0 is acidic.  Main...

High nitrate levels in your aquarium indicate a build-up of fish waste and organic compounds, resulting in poor water quality and an increase in al...

The API® AMMONIA TEST KIT measures ammonia to help prevent fish loss, as ammonia is the number one stressor and killer of tropical fish. Ammonia is...

The hydrometer function will test the salinity levels in marine aquariums and the thermometer will test the temperature of the water. This Hydromet...

Aqua One 5 in 1 Test Kits provide all essential tests to monitor the health of your freshwater and marine aquariums. Each kit comes complete to tes...

pH Alert Product Description pH Alert™ is a unique color device designed to be placed in the aquarium or filter and monitor pH continuously. A s...

A complete kit to measure and adjust pH. Tests pH levels from 6.0 to 7.6 and includes bottles of pH Up and pH Down to modify aquarium water pH to d...

Phosphate can enter your aquarium through tap water, fish waste, and decaying organics such as uneaten food and dead algae. Excess phosphate contri...

Quick and easy monitoring for freshwater aquariums The sera Quick Test provides the optimal possibility to check the most important water paramete...

Calcium is one of the most important elements in a reef aquarium. Reef invertebrates such as corals, crustaceans, mollusks and even some types of e...

For quick, reliable readings in your saltwater aquarium. Submerge hydrometer approximately 15cm below the water line. If necessary, gently tap hydr...

The Aquatopia Marine Hydrometer ia a pre-calibrated, wide-range specific gravity meter. It is self-levelling. Your hands stay dry. The Marine Hydro...

Copper, a common treatment for many parasitic infections, must be monitored in an aquarium or a pond. The copper level can drop too low for the tre...