Hi, it looks like in a month or 2 (maybe more) I'll be getting some baby N. brichardis, does anyone have any good reading on the net I could do to understand these better? I'm trading some baby A. cacatuoides for them. They're going into a 55g (US) tank, 4 feet long. How many can I keep in there and what if I end up with more males than females, does that pose a problem? Thank you.