Yeah I have been reading through the site, and it looks like I made some mistakes...Your right, the employee had no idea what he was talking about, he even sold me gravel, which I had to take out after what I read, and observed...too bad I spent $200 on the kit. I adopted them because the previous owner had them in a tank less then HALF the size I have now, and I felt sorry for them and have always wanted turtles. He didn't even have a filter

just one basking platform that they had to share (and that was really small too) I have a very small apartment, but I'm moving things around and building more shelves so that I can fit the turtles into my space

Thanks a lot for your advice, I am saving up for a bigger tank and filter...I realize now I should have done more research, but knowing what I know now, I can do what I need to. Thanks again!