58 degrees is the point where the water in the res is at it's highest oxygen level. It lowers levels at lower temps. Like Dutch says.. Lighting has no substitute. That would play a part as to the res being cold.. If it is?

Ga.
GaGrown Reviewed by GaGrown on . my plants werer holding out on me! So I've had my three seedlings under a generic wallmart "plant" light. I noticed it was stressing them out so I built them their own little space. I had a 250watt light so I.strung that up in there too. I was starting to get really discouraged at the lack of progress I was seeing, the new growth took forever if there was even any, and the roots in my dwc bucket were not showing any progress either. That plant was in the worst shape of all, the leaves were wilting and starting to krinkle yo a Rating: 5