If anyone has a 40 gal breeder set up or a similar sized tank (36L X 18w X 16h) that has conquered (at least mostly) the temp and humidity problems I would love to hear how you have it set up and / or maybe a pic or two. Currently have a uth 30-40 gal size and am experimenting with 1 or 2 heat lamps of varying wattages. I think I'm getting close at least with the surface temps, but ambient air temps in the tank are low or at least the stick on thermometers say they are. I check the surface temp with an IR gun. Thinking about adding a smaller uth on the cool side and going with 1 100 watt heat lamp in the center of the tank. The 1 lamp with the rest of the top covered seems to be the best solution for humidity.