Im trying to grow in a closet in my detached garage 4x4x6. Closet temps are running between 60-65 degrees when the light are on. When the lights are off it is 55-60. The water is 80. Im running my pump continuous. I have a small space heater in there. One of those small desk heaters. I know the room needs to be warmer, im having trouble dialing in the temp or does it matter when the water is 80 all the time? Any advice? Thanks