Any tips for creating a larger temp gradient in a 10 gallon? I currently am only getting about a 6 degree difference from the warm side to the cool side, current temps are 86 and 80. He's spending a lot of time sniffing at the screen at the cool side of the tank and I'm wondering if he's hot. I'm using a CHE on a dimmer on the warm side.
Thanks!
Jonah and Aaron