Quote Originally Posted by SaintAlphonzo
ok, so I have a question regarding grow room temperatures. I grow in the basement all year and i live in a northern climate. Winter temps down there are around 55 degrees.

It's obviously not a problem during lights on, the temp is comfortably in the low 70s in the room. Also, I've never really had any problems doing soil grows in this environment. But, now I'm switching to hydro and I'm starting to have some concerns.

Given that the light is off a minimum of 6 hours and a max of 12 and my res is 18 gallons, I'm assuming that my water temp is going to hover around 55 degrees. That's too cold, right?

So the question is really, is it just the water temp that is too cold, or will the air temps cause me trouble too. Again, I haven't had to much trouble with soil, but the yeilds are sometimes lower than I would expect, maybe this is the cause.

The 2 options I have come up with are . . .

1) use a space heater in the room that either has a temp gauge, or have it run opposite the light times so it warms at night (cycle)

2) or, use an aquarium heater to keep the water temperature in the right range.

3) I guess the third option is run both.

Thoughts?

Also, what is the optimal room and water temps for a hydro grow? I've been reading the general consensus is mid 70's for room and 60's for water, yes?

thanks!

I've been researching this stuff like crazy and after toking i've forgot just about everything i've read. haha

I would run the aquarium heater, buy one specifically for a 20gal size tank and experiment with it until you can get a good temperature range. I think 70deg temps in the res would be sufficient from what i've read. I think.

I do know 85deg is optimal for a c02 grow room and they can supposedly get up to 95deg no problems.
4x4Turbo Reviewed by 4x4Turbo on . Temperature questions ok, so I have a question regarding grow room temperatures. I grow in the basement all year and i live in a northern climate. Winter temps down there are around 55 degrees. It's obviously not a problem during lights on, the temp is comfortably in the low 70s in the room. Also, I've never really had any problems doing soil grows in this environment. But, now I'm switching to hydro and I'm starting to have some concerns. Given that the light is off a minimum of 6 hours and a max of 12 Rating: 5