MY friend has a turtle, not sure what kind, it's getting big and has outgrown its 5 or 10g nonfiltered, nonheated tank. I'm not sure what kind of turtle it is but it seems to be your common turtle that start out tiny and get huge. It's tank is set up with rocks and water filled halfway so the turtle can be out of the water completely if it wants to. I'm wondering what kind of conditions this turtle needs to be healthy.