: Most states only allow the sterile "triploid" variety to prevent uncontrolled breeding in the wild.
: Only seven states (including Alabama , Arkansas , and Mississippi ) allow the stocking of non-sterile (diploid) grass carp. 2. Where to Buy (Licensed Vendors)
: Many states—including Texas , Florida , Pennsylvania , New York , and Illinois —require a permit from their respective Department of Natural Resources (DNR) or Fish and Wildlife agency.