Hi, I'm new to dwarf cichlids, not fishkeeping. I decided to try keeping a few in my 20 gallon community tank. The only fish in my tank are blue eyed rainbows and one female betta who pretty much minds her own business. I got two females and one male from an online source. They started out fine but I did notice one of the females was a bit aggressive with the smaller female and male. The male died within a week. It wasn't clear to me whether he was bullied to death or wasn't well. I thought it was the latter so I tried buying a male from my lfs. The moment he entered the tank, the one female went after him. I couldn't stand to watch so after a week I rehomed her. I thought everything would be alright but now the smaller female is going after the male and he hides most of the time. I don't think he'll make it if I don't remove her, too. Am I doing something wrong or are these cichlids better off alone? Everything I read suggested a pair but this is really difficult to watch.