hmmm I better stop getting that stuff on my fingers then. Pretty much impossible to say what I do will work for you since our water is no doubt different but my tap is at 7.0 and 16 drops of down in a gallon puts me at 5.8 and thats were I run. :jointsmile:
tinytoon Reviewed by tinytoon on . PH down..how much do I use? I bought some PH down, bottle does not give me directions on amount to use per gallon. My tap water is 7, looking to get down to 6. Just water for my mother plant that's in soil right now. How much PH down do I use per gallon? :) Rating: 5