Mosquito Fish ~ Gambusia affinis

Mosquito fish are hardy, livebearing fish renowned for their ability to control mosquito populations by feeding on larvae at the water’s surface. Perfect for outdoor water features like ponds, troughs, and small tanks, they thrive in a wide range of conditions and require minimal care. Their aggressive feeding behavior makes them ideal for keeping stagnant water mosquito-free.

• Grows up to 1.5 inches

• Survives in poor water quality and extreme temperatures

• Requires no supplemental feeding when larvae are present

• Best kept in small groups of 5–10+ per container

• Compatible with most livestock water systems

Originally native to parts of the U.S. South, Gambusia affinis has been introduced globally for mosquito control in agricultural and urban settings.

Fun Fact: A single mosquito fish can eat over 100 mosquito larvae per day, making them nature’s pest control agent.

These are sold by the box of 500.