I need some beta advice. I know that betas can be a bit aggressive, not to mention fin nippers. But I only know about Beta splendens. I've never owned a beta simplex, or other, more rare, beta. Are ALL betas (currently known) aggressive, or fin-nippers? Or are there some less aggressive betas out there, that I might be able to house in a community tank? I'm specifically referring to trying to house a betta (or two, or three, or..?) with german blue rams, or possibly angels. I'm still setting up my 75 gallon tank, and I'm not certain as to what fish I want to house. Thank you for your time.