There's no need to skin grass carp, but some picky eaters just won't eat skin, so you may want to serve filets skin side down so such people can leave it on the plate easily, or you can easily peel it off after cooking.
Similarly, it is asked, are common carp bad?
Common carp. The common carp is a true bottom feeder, uprooting and disturbing submerged vegetation. These fish are notorious for altering their environment. They are most dangerous when introduced into an alien habitat and become an invasive species.
What does the common carp eat?
Common carp are omnivorous. They can eat a herbivorous diet of aquatic plants, but prefer to scavenge the bottom for insects, crustaceans (including zooplankton), crawfish, and benthic worms.