Yeah, hes a beast. I personaly like to see the many pairs I have had breed i'n my large community tank. Watching how a mother and father defend from other fish and so on
I find tanks like this rather boring, as you don't get to see a lot of "natural behavior." But I do see the appeal. I started a thread a while back on techniques for housing large cichlids together and this method was brought up and can work for people.
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^Ya I am guessing they are all male, because otherwise pairs would have formed and you would think they would have gone on a rampage.