all the cichlid pellets i'v looked have a relatively high percent of protein..everything iv read says sevs. a herbavores, and to feed them a veggie based diet.. i had the largest one on cichlid food for a while, and he didnt seem to be growing, since switching to the mainly veggie based diet, he's perked up alot, more active and growing better..i actually caught all 4 of them grazing on some anacharis last night when i got up to use the bathroom.. its just the biggest one whos color is dark, aside from his color he's healthy and active, the other 2 turquoise or greens are both typical colored.
right now they are in a 30 gallon long, i'll be moving them into a 55 when i get my "christmas present" for myself, a 150 long for my SA cichlids.