Can two different aquatic turtles coexsist?

Question
I have a baby red ear slider and I was wondering if I would be able to get some different types of aquatic turtles and put them in the same tank? I currently have a 20 gallon tank. I was thinking like a cooter or a different type of slider. Any help or advice would me much appreciated. Thank you.

Answer
Generally yes they can if from the same region, but habitat and food preferences may differ, and some may fight. You are going to have to do your own research on this one. This is a simple self-researchable question. I recommend you look around on Austinsturtlepage.com first.