This is why I always say if you have a Red Ear Slider or Yellow Belly Slider and wanna get it a buddy then Map turtles are a good fit. They get along fine in most* situations and the two pictured here are they exact same age but as you can see the Map is much smaller and therefore much better if you are limited on the size of tank you can afford/fit in your home. *Always be sure to test and watch them together for the first few days just to be safe. This is Atlas & Heckle. They have been tank mates for nearly their entire lives.