i am using tapwater to mix my nutes with i am growin in soil i also have ph test for my fish tank that has ph up and down with it...i ran a ph test on my tap water its a little more basic than i or the plant would like..can i use ph down to fix this?
before you worry too much about the ph of the water,have you checked the ph of the soil so you can balance them out.
in soil one is no good without the other..