Crestie would be better suited, but as an adult they may need a little more room, they like to climb. Leo's in my opinion need a little more floor space, 10 gallon to 20 long floor space. If the air temps are 72-79 F, a Crestie won't need any more heat. Anything over 80 for long periods of time, can kill them. Cresties love the foam backs! Although they can't climb anything very well when it is wet, you want to give them lots of vines, logs, etc..to climb on and hide in when they can't stick to the glass when you mist them. I like those suction cup plants, I decorate the left and right glass with them and the cresties usually stick to the glass, upside down, under the plants.