I'm in the process of starting up my own cichlid aquarium. I was initially considering Mbunas but then read a forum about creating an all male peacock tank with some Haps mixed in. I love the idea and I feel like it could allow me to get a wider variety of fish, and would eliminate any worrying about male to female ratios. However, I was wondering if an all male setting would create a setting with higher aggression. I know Mbunas need to be overstocked, but what about Peacocks/Haps? From what I've read they do not need to be kept in as high of numbers as Mbunas. Also, when purchasing, do they all need to be purchased and added to the aquarium at the same time like Mbunas, or should it be more sporadic? How many peacocks/haps would be appropriate for a 70-something gallon tank? Are there any bottom feeders such as catfish that I could potentially add as well? Or what about loaches? I also would appreciate a compilation of compatible peacocks/haps that could coexist in this setting as I would like to plan the aquarium stock first and see what I can find at my LFS. Finally, what type of tank set-up do peacocks/haps prefer? A bow-front tank? Long, rectangular tank? Also, should the tank have lots of rocks or plants? What is the ideal interior set-up for peacocks/haps? Sorry for all of the questions, I just want to make sure I have a thorough knowledge before making any final decisions. THANKS!