my first hydro run. been vegging on 24/7 last 5 days at 750ppm. using floranova nutes by GH. my ph meter was off by 3 or 4 points so i just fixed that and currently ph is at 5.7. im using a procyon led light. im about to make something to cover exposed roots...i also thru a lil scoop of great white into the water. my only prob at