Its an 80 gallon tank with a fitted acrylic partition in the middle which effectively turns it into two 40 gallon tanks. Its 21 inches tall, 18 inches deep, and 48 inches long overall. We fitted acrylic lids to the two sides. This makes the humidity on the ball python side go up to 95% with an open water dish. The heating element is an UTH 30-40 gallon size.

On the other side is a young corn snake and the temperature and humidity is right where it should be with no heater or anything. It just warms from the ball python's side. The acrylic lid holds that temperature in.

So with the lids I have to install ventilation fans. That keeps it down but then it gets the other side cold. If I put a heater in that side it will also have to have a fan.

Anyone have any suggestions?

The water dish is on the cool side, but because of the shape of the space the dish is only a few inches away from the heating pad. I was thinking of using a covered dish. Would that help much? What if I get a ceramic dish instead of plastic? That might prevent some heat transference into the water too.

This setup belongs to my brother and he's very partial to the lids.