Most Goodeidae are relatively peaceful and retiring, although some can easily hold their own with similar sized cichlids. They have relatively large fry and many of the species do not eat their own fry. Males have a modified anal fin for the fertilization of the females, but it does not resemble the gonopodium of the Poeciliidae. Also, unlike the Poeciliidae, Goodeidae females do not store sperm and must mate after each delivery of fry.

Goodeidae are generally tolerant of water conditions and are not picky about foods. They do not require live foods (although live foods are beneficial). Some species appreciate some vegetable matter in their diets.

Unlike many attractive, exotic fishes, Goodeidae are not difficult to breed. Most healthy adult females deliver broods of relatively large fry monthly. Fry rearing is not difficult and with a little practice nearly anyone can grow them to maturity.

For additional information and a list of resources about the family Goodeidae or click on the following link:

     American Livebearer Association