Well, I caught an adult gambusia fish at my baby cousin's third birthday party, in a lake. My cousin is now five years old. I have had it for three years and it was an adult when I caught it. (I know because after I caught it, it had a baby!)
Gambusia are fish from fast flowing clean streams. Air pumps on their own do very little for them. Gambusia need filters.
Fish control mosquitoes by preying on their larval freshwater-dwelling stages
The scientific or taxonomic name would be Gambusia affinis.
There are several species of fish that are called "Mosquito Fish" The species most often refered to as a Mosquito Fish is the Gambusia and the male of that species grows to around 1 inch.
Gambusia affinis
A small livebearing fish that does not eat mosquitoes. They are a pest around the world where they have been introduced because people mistakenly believed that they would control mosquitoes.
eggs,fry,juveniles,adult fatheadminnows
Pecos gambusia was created in 1853.
Gambusia dominicensis was created in 1913.
Widemouth gambusia was created in 1975.
Yellowfin Gambusia was created in 1957.
Cuban gambusia was created in 1854.