Aquarium Pharmaceuticals produces a complete line of liquid test kits for testing saltwater and freshwater aquariums. Single and master kits available.
Aquarium Systems Instant Ocean test kits include step-by-step instructions to make water testing quick, easy and mistake-proof. Novice and expert aquarists alike trust Instant Ocean Calcium, pH and Alkalinity test kits for their ease-of-use and reliable readings.
Elos’ reputation for applying the latest advances in marine and freshwater sciences into their products has garnered the respect of hobbyists from around the globe. Marine Depot is the only online retailer to carry Elos’ full line of test kits.
Easy to use, convenient, accurate and provide every aquarium owner with a number of advantages. For fresh and saltwater use.
High-End Water Test Kits that are faster, easier-to-use, and reduce or eliminate the use of hazardous materials.
Red Sea produces individual and multi-use test kits for marine and reef aquaria. Red Sea test kits are easy to use and extremely affordable, with individual test kits starting under $12.
One of the most popular test kits we sell. Excellent, reasonable-priced high-end test kits. Easy to use and accurate.
SeaChem has been producing quality test kits at affordable prices for nearly 30 years. Individual and multi kits are available for testing Ammonia, Calcium, Nitrite, Alkalinity, Magnesium and more.
Easy-to-use test kits for all your testing needs. Made in Germany.
Multi test kits and individual test kits for ponds, freshwater & saltwater aquariums. Affordable and easy to use.
Tropic Marin Water Test Kits are the result of intensive research and development - directed at the needs of the serious aquarist. Extensive testing has been completed to assure accuracy and reliability.
Tunze’s bio-chemical measuring kits render important chemical data. The measuring ranges and indicating accuracies of their Calcium, Carbonate Hardness, Iron, Nitrate, Nitrite, Ammonia and Phosphate are superior to other aquarium test kits on the market today.
Pinpoint Aquarium Controllers and Monitors, an affordable and accurate line of portable digital monitoring equipment for pH, mV (ORP), O2 and Salinity.
Hanna Instruments manufactures a high-quality line of handheld testers (pH, TDS, Temperature, ORP), Photometers (one of the most accurate ways to test for phosphates), replacement electrodes and calibration solutions for aquarium testing.