Posted: Mon Nov 09, 2009 8:10 pm
Do you have a winter where you are or does it get signficantly cooler where you are this time of year? If so, they need a submerisble water heater.
I'm assuming you have RES. They're aquatic and need water and a basking area that's easy to get on (and big enough for how many RES there are). I doubt you're seeing RES enclosures with more "land" than water on this site...If the tank is completely full, you have to make sure they can't escape. Or, you could lower the water level until you're sure they can't climb out.
How big are they (shell lengths of each without the shell curves)? Has the female (you're sure you have a female), shown signs of being gravid (needing to lay eggs)?
A picture of the shells dry would show what you're talking about (whether they're pyramiding or shedding).
What is the temp of the basking area ("right" temp doesn't really say much)? How old is the UVB light?
What do you feed them, how much at a feeding and how often?
"You become responsible, forever, for what you have tamed." -Antoine de Saint Exupery-