This 10 in1 aquarium water test kit by Exposome BioSciences is a multi-purpose 10 parameter aquarium water tester that simultaneously performs all the 10 main aquatic water contaminant tests such as hardness test, total alkalinity test or total alkaline test, carbonate root test, nitrate test, nitrite test, free chlorine test, pH test, aluminum test, manganese test, and phosphate test. This aquatic water testing kit is ideal for testing all fish water sources (freshwater or saltwater) such as aquariums, fish ponds, fish tanks, rivers, lakes, sea and many more. This test kit detects safe water environment for all fish species such as carp, catfish, salmon, tilapia, neon tetra, guppy, molly, barb, platy betta, goldfish, angelfish, rainbowfish, zebrafish, danios, halloweenfish, gourami, jack dempsey cich fish, swordtailfish, plecostomus, and many more.