I've had this turtle for 5 months. I know this will sound terrible but, I found it in the wild and decided to take it home with me. I am well aware of the fact that I shouldn't have but I did it out of impulse. When I found it, it was about the size of a dime and it's shell was practically mush. Now, it is about the size of a quarter and has a nice, healthy shell.
It lives in a 10 gallon tank, filled about 3.5in. with a floating dock, house and heater. There is a UVB heating lamp also attached to the tank. I feed it a standard turtle food I picked up at the store and occasionally add shrimp. It enjoys being in the water and will scurry around the bottom, but I rarely see it swimming. It also enjoys when I take it out and it wanders around on my bed. Truth be told, I have read almost every website regarding raising turtles, I take very good care of it and keep it's environment and the turtle itself clean.
Basically, I was wondering if anyone could help me in figuring out what kind of turtle I have. I am incredibly curious and would love some input. I would not appreciate negative comments or comments telling me to put it back into the wild. I understand what I did was wrong but I've had it for 5 months, I'm not about to put it back in the wild. In addition to that, it is FREEZING outside.
Thank you for taking the time to read this.
Pictures are included below: