Is there something wrong with my pacman?

[Lija]

We use a zoo med heater that sits on top of tge tank screen. People mention putting under tank heaters but i am afraid our frog might burrow down to the heater. Thank you for taking in the pacman. Hopefully once he feels safe and warm he will start eating.

UTH shoud never be on a bottom of the tank for multiple reasons. One of them yes - risk of burning, but the other is it is not natural for them. They need temperature of the air warm, and burry themself to cool of in a wild, same principle should be applied in captivity. The best heating IMHO of course is ceramic heaters or infrared on top of the cage

[BlazeFrogs]

From what I know, frogs hibernate during the winter months. If he's looking healthy, don't worry about it. If he starts acting even more strange, try to do some more research.