From Microcosm Aquarium Explorer
The Molly is a hardy, stocky bodied (spheno = “wedge shaped”) species that, unlike its sailfin counterpart, lacks the elaborate dorsal fin. Because they are often found in mangrove swamps, estuaries and many other “salty” environs, some saltwater hobbyists use molly fry as food for their fishes, because of the molly’s ability to do well in saltwater tanks. Breeders have developed many color strains, including marbled, orange and blue forms.
Other common name(s):
- Black Molly
- Mexican Molly
Habitat: Mollies will acclimate to the typical community tank water parameters, but adding some aquarium or sea salt to the water (1-2 level teaspoons per gallon) will ensure a healthier slime coat, and for most other fishes this will not be a problem.
Maximum length: 6 cm (2 in)
Minimum aquarium size: 114 L (30 gal)
Water: Freshwater 22 °C (72 °F) - 26 °C (79 °F)
General swimming level: Midwater to top
Omnivore. It is important that their diets not only include meaty prepared foods, but also lots of plant matter, such as algae wafers and Spirulina-based flake foods.
Acquire one male to several females to reduce the male’s harrassing any single female.
Mollies are livebearers that tend to be less prolific than their counterparts.
Keep with other peaceful community tank fishes.