Quote Originally Posted by Snowbdr1613
ok thanks alot...i dont have plants in yet...i am just getting it right before i put them in....yea i found a point where it takes around 20 minutes to fill and then stays on till 30 minutes because thats the interval on my timer....and then drains....in 8.5 minutes... do you think this will be alright????
I don't see why an on time of 30 minutes would be a problem. What matters is the off time. You want it off as much as possible so the roots can breath and air out. For best results you should have an air stone at least, but preferably a power head pump in your reservoir that injects air and circulates the solution. Put as much oxygen into your solution as possible to help avoid root rot. Also if you are worried about that you can add a little hydrogen peroxide. For 30 minute intervals I would say maybe try 30 minutes on and 3 hours off. Since a little of your roots will be in nutes at all times, it probably won't hurt much to have a long off time. Don't get too long though, because you don't want the fine root hairs to dry out and shrivel up. You may want to start with 30 on and 30 off, and work your way up to longer off times, while you pay close attention to what each change does.