Black Molly

Poecilia sphenops is a species of fish, of the genus Poecilia, known under the common name Molly. They inhabit the coastal brackish and marine waters of Mexico. The wild-type fish are a dull silvery color, often sprinkled black all over.This species is one of the ancestors of the black mollies, a number of melanistic breeds which are black all over. It is one of the most well-known aquarium fishes and nearly as easy to keep and prolific as guppies (for optimal health and breeding success, they demand fresh vegetable food like algae). There are several other popular breeds, like the golden molly nicknamed "24 karat", or the balloon molly, which however has a deformed spine and a decreased lifespan due to the associated health problems. Also, breeds with altered caudal fin structures like lyretails exist. The wild form is in fact quite rarely kept, as it has a rather plain silvery coloration suffused with brown and green hues. If given good care with ample sunlight, high water temperatures and fresh vegetables, they will, however, prove charming fish who make up for their somewhat plain coloration with their lively behavior.
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Common Name
Black Molly
Other Common Names
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Scientific Name
Poecilia sphenops species
Family
Poeciliidae
Community
General
Class
Molly
Temperature
78 ºF
Swimming Range
Top-Middle-Bottom
Adult Length
2 1/4-2 1/2 inches
Feeding Habits
Fresh spinach, zucchini, peas and lettuce. Live blood worms, glass worms, brine shrimp and tubifex worms. Frozen vegetable diet, daphnia, plankton, beef heart, brine shrimp, glass worms and blood worms. Flake and freeze dried foods also accepted.
Compatibility
Peaceful fish that will sometimes school with their own kind. Females should out number males two to one.
Habitat
Columbia: Moderately decorated with rocks, live plants and driftwood.
Breeding
The male has a longer pointed dorsal fin, while the females is smaller and rounded. Males also have a gonopodium (underneath the body of the male is one fin that hangs down and what looks like a fin folded up against his body, this is a gonopodium. Where as the female has two fins that hang down). They are livebearers that will produce 20-40 babies at one time and they will eat their young.
Additional Comments
Many color and fin variations have been commercially produced over the years by breeders.