Thanks for the compliments everyone!
I was looking for a way to add a red color to the tank. I'm not sure that I can because of territories and my tank is not totally ideal for mbuna to start. Only 36" long.
I am shooting for a 3m to 9f ratio. As they mature and the males hopefully start to stick out I will be able to remove and replace with females. Right now all of them are a yellow/gold color. The local breeder I purchased this batch from said about a month from when i picked them up should be when the more dominant males will start to turn. So they are sitting at about 5-6 months in age right now.