Symphonyofdreams
Member
I'm a little confused on the 80-84 degree recommendation with CO2. Is this the general room temp or temp directly under light at top of plants? I'm using 315 watt ceramic lights at 12''-16'' from top of plants. Not a lot of heat coming off these lights but obviously hotter under light than room temp. I was reading Radiant temps don't matter and it's room temps that matter. Correct?