Just add teaspoon or so per gallon until you hit it, and just keep retesting until you get it where you want it. Get one of the cheap liquid test from a fish store. Since everyones water is different, its going to be different for you too!! Oh and make srure you only start adjusting the ph level AFTER you pt in ferts!
carinia Reviewed by carinia on . How much vinegar should i add to my water for soil grow im pretty sure my plants ph is too high. i used a soil ph kit and it became very dark green. i want it in the yellow. so my question is what is the pH of vinegar? and how much vinegar do you usually add to your water to lower the pH? Rating: 5