What a cutie! A pale body with colored fins is usually called a Cambodian pattern, I believe. Since s/he doesn't have any stripes on its body, it will probably stay pale rather than get colored in. :3
I'm no expert but I think your baby might actually be a male. When you look at its sides, do you see a dark pink-red triangle behind its stomach? (Shine a flashlight from behind if you're having trouble seeing) If yes, those are ovaries and it's probably a girl. If not it might be a boy, but since they have their testes in about the same spot it can be hard to tell until they're older.
Oh, and fins grow ray-first, so it looks spiky before the webbing fills in. You may have a little crown tail on your hands, but it could just be growing fins.
Last edited by Rana; 01-27-2014 at 05:55 PM.