Black Lyretail Molly

lg 89833 Black Lyretail Molly 1
Latin name: (Poecilia latipinna)

Care Level








Preferred Conditions


Avg. Max Size


Minimum Tank Size

30 gallons



The Black Lyretail Molly is an impressive hybrid variation of Poecilia latipinna, the Sailfin Molly. These fish thrive in a variety of salt levels and can easily adapt to a freshwater or saltwater aquarium. To ensure the best possible health, it is recommended to include a teaspoon of aquarium salt per gallon of water in the freshwater tank. Moreover, the Black Lyretail Molly’s striking appearance of black with white highlights on its fins and a lyre-shaped caudal fin adds to its charm.

The Black Lyretail Molly is an ideal fish for a community tank, due to its peaceful and social nature. In terms of tank size, they are best kept in tanks of at least 30 gallons, with plenty of strong aquatic plants such as Java Fern, Sagittaria, Vallisneria, and Anubias. As they tend to have hearty appetites, a good filtration system is essential to remove their waste products. Additionally, they should only be kept with other peaceful, large fish that can tolerate the same water conditions. Furthermore, they are known to be quite resilient and adaptable to a variety of tank parameters.

The pointed anal fin and much larger dorsal fin on the male, and the rounded anal fin and pregnancy spot on the female distinguish the two. The Black Lyretail Molly is a livebearer that requires a spawning box in a 25 gallon, or larger breeding tank. The aquarium should be planted densely or have a thick algae mat. Having a group of floating plants in the corner of the aquarium will promote rearing outside of the breeding tank. Every 60-70 days the female give birth to 10-60 young that are already approximately one-half inch long.

Gill's Fish