I was walking beside a lake today and I saw a little lizard (assuming it was a salamander) swimming around in the water. I know that the answer to this question is almost definitly going to be no but i'll ask anyway. If I caught one of the little guys and put him in my tropical tank would he die or kill my other fish. I probably wouldn't try it even if it would be ok because they seem so happy in the lake and I don't want to put them in a tiny little aquarium.