I recently added some rainbow fish to my community tank, I didn't think about it at the time but I was wondering if they get along with Bettas and whats going to happen when they start showing their colors, my Betta flared and bumped one the day I added them, My betta who is male seems a little pissed off about them but Im hoping this is just a temperary thing. Does anyone know if theyll be ok together in the long run? Also will the rainbows try to eat my crab when they get bigger, also I was thinking of adding some shrimp when I upgrade to a larger tank, will the rainbows try to eat shrimp? probably some cherry shrimp is what I will but. thanks in advance