Hello all, well first of all there are three trype of eater,
1. Carnivores= meater eaters
2. Herbivores= plant eaters
3. omnivore= both
well i have been buying most of my food from
http://www.brineshrimpdirect.com since i have a lot of cichlids to feed, and eat ones gets ther own food,
you never wan tot mix the diets, where you place to diffrent fish in the same tank with diffrent diet needs,
as far as Herbivores you can also feed them peas,squash,zuchin,and spianch leaves, romane lettuce leave
as far as the carnivores you can feed them frozen krill, mysis shrimp,brine shrimp frozen or freshly hatch(FRY) and ocean cod,talipia,and salad shrimp(raw) these are the thing that i have used in some of my tanks for many years.
if not check out the best site at
www.cichlid-forum.com