I've only ever used it for medicated food, but I recently used it on some of the omega one pellets I bought that none of my fish (save my betta) would touch. I soaked a good amount in garlic guard for twenty minutes and tossed into all the tanks and now I have happy fat fishbois. I figure its a good way to use it instead of letting it go bad since I only ever used for medicated food to trick my fish into eating