I bought it for the harem but then when i started realizing my 1M; 6F was actually 3M; 3F; 1 unknown, i sold the other 2 males and held onto this one. I'm really thinking it's a male, and it has a lousy attitude - hates my new Red Terror Festae - but still doesn't have the trailers on the fins like my big dominant male JD in the 125g, so what do you guys think?