yeah they are very healthy, very chunky too, they aren't interested in any sort of food apart from cichlid pellets, its good though as they contain all the cichlids need! i have a feeling there is 3 males and just 1 female though as the biggest, which i presume is the dominant male chases two of the others off all the time and just stays with on, which i presume is the female! but for the most part they all swim around together, will have to see if i can find a couple more large ones to add to them, hopefully females, might spread aggression within the group!