I'll tell you honestly, you don't have room for any true schooling fish that could also serve as dithers, even in a slight sense. 90g is not big enough to hold all those Cichlids in addition to a school of other fish.
I'll tell you honestly, you don't have room for any true schooling fish that could also serve as dithers, even in a slight sense. 90g is not big enough to hold all those Cichlids in addition to a school of other fish.
I don't mean to sound condescending. In fact my own aquarium is 90g. I dislike the people who make drastic overly-cautious claims about SA/CA stocking. That said, I don't see any schooling fish surviving with this sized tank while allowing all residents to be truly healthy.