My tank has been sitting for a few weeks between 61(at lowest) to 71 degrees on average. Sometimes it will reach 75 but only when we kick up the thermostat for the house. It is currently on the floor, so i don't know if it is on a table if that will help.? Any ideas on how i can warm it up? i need it to be between 75-85 degrees in there. Also a question on lighting. I heard that UVB bulbs are good for tree frogs. what watt should i get?