Turtles eat fish. Even a large fish will have a chunk taken out of him eventually. How big is your tank? For 2 adult maps it should be at least a 125g tank, and if you want to add another turtle, you'll need another 50 gallons or so. And a VERY powerful filter---turtles are poop machines. I'm not even sure snakenecks are compatible with Maps---do your research before attempting it.
|