Only cold-hardy tilapia are outlawed in our region. Mossambiques are not cold-hardy. I am expecting to restock every year, if I go that route. Azolla is being delivered by ducks and other wildlife from neighboring ponds. I am seeking a management solution that does not harm wildlife.
Is the solution a MIX of tilapia and grass carp? Will either of these fish attack water lilies, cape pondweed, and/or tadpoles?
