If you do decide to get one, make sure you put glass tops on your tank. When I bought my first tank (a 55g from a friend), it came with a SF eel. It had glass tops, but he had cutouts in the back for equipment. Well, the very first night it was setup, the eel evidently was swimming around, found one of the small openings, and just kept on going up till he was out of the tank. Unfortunately, I didn't find him till the next morning:nope: