Yep! Lots of ways to alter pH.. If it's for a reservoir I suggest getting something much more reliable to adjust the pH like, Phosphoric or Nitric Acid to lower pH and Potassium Silicate to raise the pH.

Otherwise, natural or 'home' solutions can work just fine.

Hope this helps.
Bob.
BobBong Reviewed by BobBong on . How to lower PH? how do i lower my ph. its at 7 right now and im in a soil grow? any homemade methods? i kno about ph up and down at hydro shops but im not there at the moment.....:rastasmoke: Rating: 5