Mosquito season has begun early in Orange County due to warm weather and heavy rain. If you have a pond or a water fountain, the mosquito fish is the best choice to control mosquito. They are very hardy fish. Minimum care needed. They can eat up to 200 larvae a day. They can live with other fish. Minimum order $10 for 20 fish. Mosquito-borne diseases such as West Nile, Dengue and Eastern Equine Encephalitis are widespread in California. Don't let the larvae hatch in your backyard.