Actually, like I said before, the pet store I got them from kept them in a sorority together with a bunch of small schooling fish... I know, bad idea to put nippers and bettas but they did it. So they've been living together and with other fish too. I'll still buy things like floating plants, maybe even ONE other female betta as more females makes it easier to keep them, according to people with experience...
My dad's cichlids had a separation glass, so they didn't get to each other. They have a friend apple snail^-^
I'll just wait for them to work it out and get the extras. What would you say about adding just one other female?
And would you suggest that I wash the brine shrimp before feedings?