Jim Grieco wrote:Thanks, but as I stated, the fish tank will be in a separate room and heated if needed.
If the water is flowing to the growbeds in the colder room that water is going to cool down really quickly. You'll need a heater in the FT if you go with tilapia.
I am able to keep tilapia alive in my house in Vermont without a heater but the water temps do drop to the lower 50s at night during the winter because the GB in right in front of a window. During the day the house temps are 70 and they don't drop below 65 too often.