I had a group of 12 altifrons in my 1400L tank and although I wouldn't call them "schooling" in the true sense of the word they were certainly more social than many other cichlids would be. I think in nature they live in loosely associated groups rather than schools, and pairs probably pair up and become a bit more defensive and separate when breeding. I think keeping them in single species groups is a good idea, but only if you have the tank space...
I completely agree w/ this. I don't think there is any cichlid sp. out there that truely "schools". Maybe live in groups, which is very different.
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