Black Molly

black molly
Black Molly -- Poecilia hybrid See more aquarium fish pictures.
© Aaron Norman

Scientific name: Poecilia hybrid

The Black Molly species is a hybrid, a cross between the Sailfin Molly and the Short-finned Molly. It's probably the hardiest of all the mollies, but good water quality is still essential. It does best when a teaspoon of salt is added for each gallon of water, but not all other fish can tolerate this much salt; check with your dealer before altering the salinity of a community tank.


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A water temperature of 72º to 82º Fahrenheit, a pH from 7.2 to 8.2, and water that is moderately to relatively hard are fine. All flake and freeze-dried foods are accepted, but flake foods high in vegetable content are essential. Mollies and other live-bearers enjoy occasional feedings of blanched zucchini.