you can chop up most fresh sea foods I belive. I read fresh clams are one of the best foods to use. mix and match whatever. I've never done this myself but was wanting to give it a try. Hopefully someone with a little knowledge on this will help us both out.
It’s a proprietary mix, but that said I can tell you that we use a bunch of different sea foods and several additives (including reef roids) blended together to make our mix.