I have a 6ft 125 gallon with sand substrate,marineland canister filter (c-360) and 2 emperor 400 filters along with heaters keeping the water at 80 degrees Fahrenheit so I was going this weekend to get some Africans but I don't really want to get the super highly aggressive ones so in your opinion which Mbuna are more peaceful and active and how many should I get? I was also thinking of getting a few haps and peacocks