Reread your post, mix at 4.9 possibly, but IMO you are still in a safe PH zone especially if you water every day. Are you still using the F and E tables?
My coco grow
http://boards.cannabis.com/indoor-gr...coco-coir.html
BlueBear Reviewed by BlueBear on . How to adjust PH in Coco? I am trying to bring down the PH in my Bio-Bizz coco and It is not coming down??? I am using 50/50 coco and perlite. My 1/4 strength nute solution is currently running to waste. The water is going in at 5.2 and coming out at 6.2-6.5. I have run 10 times the containers volume through and the ph won't come down. Any ideas? Thanks -J Rating: 5