Yeah I use powdered sulfur to lower my pH.

I test my filtered water (which is about an 8!!!). Then I lower to it around a 6.5-7 using the powdered sulfur. I do not have a pH up because I can just add more water. I then add my nutes, which lower the pH about another 1 point or a little less.

I check my soil about once a week with just regular 6 pH water run through the pot and then I sift the runoff and test that water. If its low, I use a little higher pHed water, vice versa.

Ive been doing some minor tests. I kept 2 plants on 8 pH water while the rest got lowered. One of these plants, I eventually put on regular pH. The plants were about the same size. Its been about 3 days since I switched to the regular pH, and the plant has triple its growth rate. New growth is coming out at an alarming rate and its looking female. At this rate, it will be matching the rest of my babies in a few days.
Racerx Reviewed by Racerx on . PH PROBS. from my understanding in soil your spose to bring the PH to around 6.4 after nutes are added, is this true? Also do you reccomend using dolimite lime in fox farm ocean forest soil? If so, how much? My tomatos are dying and I think it's a PH problem. In the beginning I never adjusted the PH after nutes, just before. I find out that after nutes are added it drops below 6, can this be cured with proper phing now, or am I fucked? Help Help Rating: 5