Gambusia species are often called top minnows or simply gambusias; they are also known as mosquitofish, which, however, refers more specifically to two species, G. affinis and G. holbrooki.

These can be introduced into ponds to eat mosquito larvae.  As a consequence they have been introduced widely outside their native range, and sometimes become invasive, threatening the local species.  They are very important in aquarium trade, desired for small size, ease of breeding, and charming gracefulness.

Click on any of the images below to view our Gambusia gallery.