Phosphoric or sulfuric acid are preferable to nitric or hydrochloric acid. Phosphoric is best.
Do not use baking soda. Plus, pH range for hydro should be centered at 5.8-6.2.
Read the chemistry link in my signature carefully.
stinkyattic Reviewed by stinkyattic on . high PH Ok, I just did a PH reading on my hydro set up and found the PH to be 7.6. What can I use to bring it down? vinagar? lemon juice? I dont have the $$$ to go get ph reducer. and the hydro store is closed? is there another way? thanks:( Rating: 5