Using 1 gallons to start, but then prob moving into 2 gallons. Drip system with res. Straight coco, no perlite. 1k HPS. DNF A-B, DNF Gold, Massive, Cal-Mag, Silica, Grozyme, 3% Hydrogen peroxide. Whats the recommended PH for coco? Same as rockwool? 5.5-5.8?