I just got a 90gal and I would like to start an African Cichlid tank. I have been looking at some African Cichlid and I know that some are from different lakes. Can you put them together or should you keep them from the same lakes? Also if there is any other important thing that I should know. I know about the water hardness and some are more aggressive then others. Or if there is any thing ells that I should know about them. I have a 39gal right now with all different fish in there but I think African cichlids are so cool that I would like to have a tank with just them.