I've found that common carps makes good catfish cutbait....too bad its illegal to use carps as cutbait for the catfish because the catfish were crazy for them!
It is because they are so greasy. I have used drum as cut bait before with not real good results. Whole small drum should be good. Bullheads are great. There is no real reason carp can't be used. Yeah they are invasive but they are in every lake around. I can't think of many lakes that are carp free except in the far north. They are going to be the same results with the Asian and grass carp.
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