I use adjustable submersible ones and don't have trouble with temps. >> What brand is yours?
The only thing I can think of atp is that the filter's not running to circulate the water, so the warmer water is sitting stagnant. I really hate that thing tho, and I don't think he's that crazy about it either :-?I use adjustable submersible ones and don't have trouble with temps. >> What brand is yours?