kh depletion

  1. J

    Having Problems With Ph & Kh

    Hi guys So I've been having some ph swings due to my kH depleting. Some info Out the tap: pH 7 (after 24hrs) gh 5 kh 3 Current tank readings: pH 6.6 gh 5 kh 2 2/3days later: pH 6 kh 0 I have nt labs liquid testing kit and api liquid getting kit too ( nearly run out of api hence why I brought...