dwc help please

medium temps. so my water temps in buckets is 67 but the temps in medium are 75 to 78 the room temp is 72 is this a problem? plants are looking good though. should my medium temps be lower? should i cover tops of buckets till plants get bigger and shades it. help please.

Water temp is good tho near the upper end of the ideal range, medium temperature is irrelevant.

DEFINITELY cover your buckets, preferably with reflective/insulative material to not only keep the water and roots cool- but dark.

Air temps are good. Blow air around the room to create circulation, past the plants but not at them.

thanks for your input. i can lower my water temps more. should i bring down to 60?

65 is ideal. 60 maybe a bit to chilly.

http://www.amazon.com/gp/product/B000ICXKRA/ref=oh_aui_detailpage_o01_s01?ie=UTF8&psc=1

These block covers work good combined with filling my netpots to the top with medium. I guess you could make that out of poly, but that would take hours to cut out a package of those. They're also plastic and reusable without any ill effects.

You really do want to cover your medium so light doesn't come through the top as another user has stated.