Thank you I will experiment with some chlorine and sunsun wavemaker in the res to keep it sterile and circulating. My room is temp controlled but set at 80 because I plan to use co2 so root temps are my biggest concern. I had root rot issues with recirc ebb n flow so im ditching that and trying drain to waste like I wanted to do in the first place. I have 8 reservoirs I dont want to buy or pay the electricity on all those chillers, thats my biggest deciding factor on going this route. I appreciate all the documentation you guys post it really helps a lot when there is no where else to learn this stuff