The County of San Diego Vector Control Program offers FREE mosquito fish at several locations. Mosquito fish are used to help control mosquito breeding populations in green swimming pools, fountains and ponds.
You will only need a few mosquito fish initially. These fish reproduce and grow to fit their environment. If you have too many fish, Vector Control can come and collect the extra fish.
Mosquito fish are for backyard sources only. Do not release into streams, lakes or other natural bodies of water.