Fantail_John
Fish Crazy
This might sound a silly question
today i binned my test strips so i when to buy the API test liquid. My silly question is in the set there are two bottles of pH liquids one pH test solution and the other is high range pH test solution, which one do i use to test my fish tank water and tape water? I might be reading the information wrong in booklet. But i use both of them this morning and on the pH is 7.6 and on the high Ph test i get a reading of 7.4? Help a silly guy out 
John
John