calmness in the tank. I have two 100 gal tanks and the African chiclids are very territorial. I had one that was so aggressive I had to take him out when we had babies, and I released them into the big tank after they were an inch and half long, and this aggressive one had to completey taken out and he is in a tank by himself, 10 gal tank. He digs in the rocks and makes holes, he is a card and he is about 5 years old and huge!
90djbraman...that would truly be a dream! The only way I can think of to achieve that is by packing in as many African Cichlids so that the boundaries are not easy to identify - they are less territorial. At the Georgia Aquarium there is a tank full of them - and they are just swimming in place - there's no room to fuss and fight!