Often the best treatment for mosquitoes is to place small fish that feed upon mosquito larvae into the standing water in which the larvae live. The most common fish used to accomplish this is the Mosquitofish, also known as Gambusia affinis. 

The District raises these fish at its facility and provides them to District residents at no charge, providing there is a need. The fish are available for delivery only (no pick-ups). The amount needed will be determined by the technician, who will then plant the fish in the identified water source.  Request mosquito fish by filling out a request.