Yes, I shoot for 70-75, but if your room temp is that, than you probably won't need a heater or chiller.

The warmer, the faster growth, but more chance of root rot.
The colder, the slower they will grow.
Opie Yutts Reviewed by Opie Yutts on . Quick Question What should be the Temp. of the water in your hydro water? If I can get a quick response that would be very appreciated. Rating: 5