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MJS Reptiles

Western Mosquitofish (Gambusia affinis)

Western Mosquitofish (Gambusia affinis)

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Western mosquitofish (Gambusia affinis) are a small, widely distributed species of livebearer originally native to the Gulf Coast and lower Mississippi drainages. They have become invasive well outside of their native range in the United States and in many other countries around the world due to being implemented as a form of biological mosquito control. Because of this it is VERY important to NEVER release these fish into the wild. Gambusia are also a popular feeder fish and are a much healthier alternative to goldfish and rosey red minnows. 

Currently available animals are field-collected and have gone through a preventative quarantine and treatments. 

Care Level: Beginner.

Diet: Omnivores, mostly feed on small invertebrates. 

Adult Size: Females can reach just over 2.5” while males rarely exceed 1.5”. 

pH: 6.0-8.5

Water Temps: Can tolerate a very wide variety of temps, but 60-82F is ideal. 

Other Care Preferences: While they can live in full freshwater it is best to keep them in at least slightly brackish water long-term. 

NEVER release your fish into the wild or stock public waterways without permission from a government agency!

*We are a licensed dealer and propagator of reptiles, amphibians, invertebrates, and fish in the state of Pennsylvania. All of our native and game fish (including bullfrogs, northern green frogs, and their tadpoles) come from licensed dealers and propagators with proof of receipt (available upon request to government agencies only). We WILL NOT under ANY circumstance sell any herptiles or fish collected from the commonwealth of PA, so please do not ask!*

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