Okay, normally my terribilis vivarium is in the 70-80 range. However, today when i turned on their lights to see the temperature, i was shocked. It was 54.0! The terribilis were inactive, hiding in the leaf litter with only their faces poking out. Then, in about 10 seconds it rose to 54.9, but no higher. Now it's down to 54.4 again. I'm getting confused and worried. They have fully functional heat lamps, why the hell has their temperature drpped by 20+ degrees overnight? Please help my frogs!