is he the whipping boy of the group? i feed mine a few small meals a couple times a day and switch it up with diff types of foods.. hopefully i will soon have these guys eatting pellets.. but for now they are eatting gutloaded guppies, live black worms, and shrimp.... i dont feed my cichla goldfish, they are high in fat and low in nutrients... i stick with minnows.. if you want your cichla to grow fast...high temp, feed them nutrient rich foods and variety, good water quality, and decent size water changes... just try to keep your ph as consistent as possible.. i also add trace elements to my water but i think that is more for health and color