Aquarium Water Tests & Kits

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...

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 ...

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

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.

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...

The API® Reef Master Test Kit test 4 key parameters – calcium, carbonate hardness, phosphate, and nitrate – to keep reef inhabitants healthy. Testi...

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...

Keep the water quality in your aquarium at optimum levels with new Aqua One Quick Drop pH Test Kit.Regular testing and maintenance of water conditi...

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...

Nitrite is produced in the aquarium in the forms of fish waste, uneaten food, and by nitrifying bacteria in your aquarium’s natural cycle as it bre...

When precision matters, the Seachem Digital Spoon Scale is the perfect companion tool for the serious aquarist. Accurate and easy to use, it will...

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...

The API® HIGH RANGE pH TEST KIT measures pH changes in marine aquariums, aquariums with African Cichlids, and very alkaline tap water. The API HIGH...