So my new frogs seem to be doing well, but I'm still concernced over their tendency to stay in the den close to the bottom of the tank. I know they are still adjusting, it has only been two weeks, but I find them there very often, even at night when they should be active. Anyone have any idea what could be causing this behavior? I noticed that the temperature in the tank is a bit low, could that have something to do with it? I'm currently in Northern NY where it's still fairly cold, and the tank temp is about 62 F. I just changed the lightbulb out since I've had it for ages and thought this might help, swapping the default 9w flourescent for a 26w 2.0 compact flourescent bulb. Would this help with the temp, would a 5.0 compact bulb be better?