Pond Boss Forums STOCKING A NEW POND Types of fish to choose bumps on fish

I have a pond with channel cats and greensunfish. Today I went fishing and caught a nice channel. The only problem was it was covered with little bumps. I've noticed that there is quite a few snails out in the water because the greenies intestines are solid snails. Are these bumps grubs or an illness? The water quality is excellent and right now since it rain the pond has had an bloom. Also will these bumps kill the fish.