Removing fish from the menu? Its says as long as you feed a good variety of foods it won't be a problem. You can feed prawns, shrimp, even feeders that contain this as long as your feeding good stuff like worms, pellets, good fillets like bass, bluegill, tilapia ect.. The article touches on the effects of freezing foods but it fails to say anything about the benefits of feeding live. NONE of what's listed is bad for your fish if you feed other foods also. Even a good food isn't so good, if fed exclusively. Variety is the key to feed whatever. Good cancels out the bad. Imo this article should be teaching you to add more foods to your fishes diet not taking food sources away.