thanks, that makes sense to me, but what doesn't is my 3ft. female. her temps are 79-81 water and 82-85 air temps, she just nibbles in fact she only ate four times last month and that's not a whole lot for her. i have had her checked out and physically, she's fine.i just don't understand that every since the last of September she has drastically went off her normal food intake.any explanation?