Do you know about the free ananomies?

[Scavenger]

I agree that putting them back into their natural enviroment could be a very bad idea. You could introduce a nasty into the area and cause alot of trouble.

However, if you were to set up a cold water tank (or even a cool water tank if you don't have chiller) for your cold water species, that might be the best option for you and your new pets.