Ok, i was told to get a Nirate test kit, so i got a 5 in 1 test kit. It tests:
PH, NO², NO³, KH, GH
1. Nows it says for PH that it should be 7.0 for neutral, but mines is 6.5 on the chart. So i have phUp and phDOWN, in crystal form, how much do i add to a tank of my size (pic below) and not...