Really!? I do a 10% - 15% water change every other week meaning only 2 weeks goes by with out a water change, and I have an Ehiem canister filter that is rated for a 300 gallon tank I also have a plumbing system under the gravel with jets in strategic areas to keep water moving around on the base of the tank, hooked up to that plumbing system is a power head that moves 1200 gallons an hour, so when I do water changes and vacuum the gravel there is very little that gets vacuumed up. How long will it take for some of these fish to reach 10" I have had some of them for over 3 years now and the biggest ones are only about 4". I am planning on getting a 200 gallon for my next tank but not till next year.
A lot of things I have read on chiclids are over crowding a tank prevents aggression, is this a miss understood statement?