Aquarium fish food is plant or animal material which is intended for being eaten by pet fish in aquariums. They contain macro nutrients, trace elements and vitamins which is necessary to keep captive fish in good health.
So can rabbits eat fish food at all?
Unfortunately they can’t eat it. Fish food is made specifically for fish to eat specifically for their diets. Rabbits are unable to eat any kind of animal material. If they do nibble at it it won’t harm them. But it shouldn’t be purposely fed to them.