I have a 22 gallon. Walmart has the heating pads that stay on all day. You can get the large one for about 12 bucks. It is great because it is very large. It will cover underneath my whole tank if i need it to. Its always running. I don't use day lamps because i have enoug light. For ambient temps I use to domes or whatever you call them. With reptile night lights in them. My ambient temps run 77 and 90. With humidity at 60%. I run a 24 hour humidifier in the room since it is so dry this season to keep humidity up. Plus, I use mesh housing so keeping humidity up is a must for me. make sure when she is shedding, she has a humid hide as well. This can be accomplished by placing a damp sponge inside one of her hides. So your bp has the choice between the two.