Now that the weather has considerably cooled off here in SoCal, I've noticed that my tank has cooled off to 78 in the very early mornings. I've got a new Acura 1000 300watt heater in my sump set at 90. Do I need another heater in the tank itself? I was hoping not because I think their ugly and I worry about the fish touching it. Is that a worry, or am I just an over protective mother? Where do you all keep you heaters and what brand do you use?