id like to know if i can add anymore fish to my mbuna tank, i have 4 yellow labs and 2 cobalt blues i had 3 but one got killed by my CAES, so id like to know if i can add anymore fish, id like to do it now rather than later so they can all grow up toghter..if i can what fish can i have i dont want anything overly aggressive...i have taken the CAES out btw...