Last October I was given TWO male Red Ear Sliders (which appear to be almost fully grown). They are living in my pond outside. I know that tortoises should not be kept in pairs; is this also true for Red Ear Sliders? I have two ponds that are connected by a spillway so there is a lot of room for them. I am thinking about possibly getting one or two more males, but I will definitely get at least one more if having only two is not a good idea because of the possibility of bullying. Any information would be greatly appreciated.