Originally Posted By: T. Gray Shaw
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?


T. Gray, you may want to define "Cold-Hardy". I know of no "cold_hardy" tilapia species that exists, nor do I know of any Tilapia species legal for release into open waters in California. Open water is defined there legally, as any water, pool, or impoundment subject to weather or any water not being sterilized or entering a municipal treatment plant before being realeased...