So, for a future tank, I plan on getting a 75-100 gallon tank. I figure the easiest way to do water changes (beside filling a pitcher at the sink) would be to use a garden hose from outside. The thing i'm worried about however, is keeping temp under control. I want to be able to run the hose through my window and straight into the tank. How could I regulate the temperature without needing to fill up separate buckets or tubs?