yeah, i agree fish should not be mixed with them. however, when i was at a pet store, they had firebelly toads, warty newts, and some fisheys all in the same tank and the seemed very healthy and good.
Pet shops and their lack of proper care. That's the sentence of it. Think rationally, if you are running out of money, trying to make money and only have that much space to get yourself a wide range of herps, you'll do just that. Depends on your personal ethics though.
