Oh my God that is SO smart!!cutechic said:I use a heating pad (like the kind one would use for sore neck muscles). Depending on the length of the tanks, I can fit 4-6 1g tanks/ bowls on it. I keep it at the lowest temperature setting for 24 hours/ day. The tanks stay at a constant 76 degrees. I got my mat for $30 at London Drugs... most department stores should have them.