Foods high in fat and/or protein don't make for a good diet. It doesn't hurt to give the fish a treat once in a while. Unless you know otherwise, bait is not a good idea since it is of less quality and freshness since it is bait. Foodstuffs used as bait is the last stop on the line before the garbage heap.
Occasional worm or other live food has it's own set of risks. If you want to compound the possibility of sickness/infection that's your choice.
Occasional worm or other live food has it's own set of risks. If you want to compound the possibility of sickness/infection that's your choice.