Posted: Mon May 12, 2014 10:39 pm Re: New Tank and ABTA - Almost done
I bet your temps are much better than you suspect. You've got a thermometer right next to the plexiglass with an open top. Those rocks underneath the heat source are much hotter and will hold that heat. I'd try laying the thermometer on the basking area and seeing what you get.
I don't think you need the night heat lamp. I expect your RES sleeps in the water, and when it comes up for air, it's ok if it breathes cooler air.
Think about a wild turtle in a pond. Right now, just SE of Chicago at 9:30 at night, it's a muggy 75. A week ago, though it was dropping into the 50's. I walk my dog near a pond that has basking RES and painted turtles. They were basking on those days where the nights were cool because at night, the water was keeping their body temp warm enough.
Tobi a RES born in 2012
1 dog, 1 teenager, 3 aquariums filled with fish, snails, shrimp and a bit of algae