I guess I should have said "live" food instead of "fresh" food. I don't really know what my LFS's sell as I have been using pellet and frozen. My newly aquired 6 line dosen't seem to like pellet and I have been feeding him frozen mysis. So, since I only have 3 fish in my DT and the 6 line in my QT, I don't want to buy so much food that I will have to throw it away if the live food only lasts a few days.