Gambusia affinis

The little mosquitofish has a big job – keeping the mosquito population down by feeding on its aquatic larval and pupal stages.  In turn, the mosquitofish is preyed upon by larger fish such as bass and pickerel, and wading birds. 

Fact File

lengthLength: 2.8 inches
life expectancyLife Expectancy: 2-3 years
dietDiet: mosquito larva