Awhile ago I bought 3 Nimbochromis Venustus fry. They all turned out to be boys and now that they are big enough to start showing bits of aggression towards each other I think it's time I get rid of my other 2 and keep just the one.

I'm getting rid of all the other fish in the tank because it is such a terrible mix as this was my first cichlid tank and the people at the store told me all these fish would be a fine combo. No.

So I would like to know which other fish would be okay to go with this boy that he won't eat but something that will fill the rest of the tank out or even just get along with him until he's big enough and he could even be on his own.

He is currently 12cm

I have an 80 gallon tank.