After reading a couple more threads today about algae eaters and seeing that a couple people are confusing SAE and CAE (saying that SAEs get aggressive when it's actually CAEs that do ), I started thinking. It's pretty much general knowledge that CAEs are bad news and that, despite their name, they really don't eat much algae. Why then does every store that sells fish sell CAEs? What do all these people do with them once they turn on the other fish in a tank, including other CAEs? I guess they must be cheap for the stores to buy. Doesn't make much sense to me though.