Not sure what a PPM meter does. Im new sorry.

yes I have 2 reserviors holding up to 10 gals.

as far as the tubes go its whats is feeding the water up to the plants at the moment, should they be running 24/7 till the roots hit the water? or am I over watering?
G-M-B?? im assuming thats nutes?

So flushing tomarrow for 24hours and moving the lights up.

still not sure on how long/much the tubes pumping water should be running.(the roots are not in the water yet)
GGlaze Reviewed by GGlaze on . Plant Problems What is your experience level? first timer Your Equipment: .1) Type and wattage of lights. CFL's 315W .2) Distance from tops? 3 inches .3) Reflector type? enclosed reflector .4) Is there a consistent fresh air supply? Yes .5) Do you have an exhaust fan and a circulation fan? Yes .6) What are the bulb wattages, kelvin ratings, and schedule? 20 on 4 off.. my lighting is this SH Hydroponics, Inc. > Multi Spectrum 315 Watt CFL Light Bank Your medium: Rating: 5