Right now my tank is empty except for some turbo snails. Some one has offered me 1 black and white clown fish. Can I take the one clown fish or does it need a partner? Also how will it do in a 40 gallon tank? I have only had ocellaris clown fish before. On another note, ever since I got the turbo snails I noticed these red snakish looking things in the tank. What is it? Is it bad for the tank?


