There was some confusion with the form. I thought the 'source ph' meant the ph of the water when it comes out the tap...which is about 7. I always ph down to about 6, but with phosphoric not nitric.
volak Reviewed by volak on . yellowing leaves/stunted growth Please help. The pics are my 6wk old superskunk. deep water culture bubblers. 600w hps. general hydroponics flora series nutes. Cloning was fine. formulex and rhizotonic in rockwool cubes under fluro. About a wk after transplanting to the bubblers, yellowing of the larger fan leaves started. guy in hydro shop suspected heat stress, so i substituted my open reflector for a cool shade. Rating: 5