Product description
Adiwo Aquarium Test Strips, 7 In 1 Fish Tank Test Kit, Freshwater Saltwater Aquarium Water Test Kit To Detect Ph Nitrite Nitrate Chlorine Carbonate Hardness, Testable In 60 Seconds (Gh & Kh) (100 Pcs)
Directions
Immersed the aquarium test strip in the water, take it out after 2 seconds. Hold it horizontally for 60 seconds and compare to the color chart on the bottle. Readings must be taken within 30 seconds for accurate water quality results.