Hi, as many of you may know, I am buying a 75 gallon tank and can't decide what kind of SA/CA cichlids to put in. The tank messures 48"x18"x20", and I hear that it's a good size to start with. My problem is that there are many fish that I like, but I don't want to fall into the trap of keeping 10 aggressive cichlids in a 75 gallon. I would like the fish or fishes to be personable, active and colourful. Anything from semi-aggressive to nasty is ok wih me. Any stocking suggestions will be valued greatly. Thanks!