I sold my Fahaka years ago but I used to get a "seafood medely" from a grocery store that had frozen clam, shrimp, scallops, and shrimp all in one. It was great because was cheaper than any one of those bought seperately.
I also fed earthworms, krill, and live shrimp as treats.
Snails and clams to keep his choppers down.
The main reason to sell him was the food cost plus having to clean his tank after every meal.
LOL with that logic I turned his tank into a reef tank, at that point the cost of his food was pale in compairison.