Poeciliidae

Gambusia affinis

U.S.A.

male up to 1 and three eights, females up to 2 and three eights

37-86 F

not important

not important, but they can live in brackish water

consumes up to its own body weight per day, mosquito larva and dried food

not for a community tank, it is quarrelsome

They resemble the guppy, mainly the female. The male is a transparent grey with a bluish shimmer on the sides, a silvery belly, and an olive-brownish back. It has a black vertical line through the eye.

The difference between male and female is that the male has a gonopodium. They are easy to breed but they will eat their own young. They should be well fed.