Posted: Sat Jun 07, 2008 12:27 pm
maelunoc, how big is your turtle?
Is the weather getting warm where you are now? If it is, and if you're using AC, don't. Let the room get warm, and the water temp will warm to the room temp. It's better for a hatchling's water temp to be warmer, but if your turtle isn't a hatchling and is healthy, water in the low 70's isn't going to harm him. My RES does well in water that's 68-70F, and this is his regular temp range in the winter.
A heater will not warm the tank evenly without a filter to circulate the water (and warmth).
68F is not enough to put a turtle in hibernation mode. It is, however, certainly better for hatchlings to have the water around 77-80F (if your turtle is one).
"You become responsible, forever, for what you have tamed." -Antoine de Saint Exupery-