im with dogstar on the thera +A pellets by spectrum I have compared the ingredients of the spectrum pellets and have found the thera+A to be more ballenced and better quality ingredience.but i also use emerald entrese and formula2 for herbivores.I have a very mixed variety of fish in most of my tanks so the food list is long and my fish eat just about anything i toss in the tank,,ps brine shrimp has as much nutrition to fish as popcorn has to humans