Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Cyprinodontiformes
(Rivulines, killifishes and live bearers) > Poeciliidae
(Poeciliids) > Poeciliinae
Etymology: Poecilia: Greek, poikilos = with a lot of colours (Ref. 45335). More on author: Valenciennes.
Environment / Climate / Range
Freshwater; brackish; benthopelagic; pH range: 7.5 - 8.2; dH range: 11 - 30; non-migratory. Tropical; 18°C - 28°C (Ref. 13371); 24°N - 1°S, 101°W - 69°W
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.0 cm TL male/unsexed; (Ref. 50894); common length : 4.0 cm TL male/unsexed; (Ref. 12193)
Central and South America: Mexico to Colombia. Often confused with Poecilia mexicana (Ref. 1739).
Feeds on worms, crustaceans, insects, plant matter. The black variety (Black molly) is a very popular aquarium fish and is marketed throughout the world (Ref. 1739). In the aquarium it feeds on green algae and also readily accepts dried food (Ref. 1672). Minimum aquarium size 60 cm (Ref. 51539).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Produces 20 to 150 young after 28 days gestation.
Wischnath, L., 1993. Atlas of livebearers of the world. T.F.H. Publications, Inc., United States of America. 336 p. (Ref. 26130)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
Fisheries: of no interest; aquarium: highly commercial
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00871 (0.00369 - 0.02053), b=3.15 (2.96 - 3.34), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.0 ±0.34 se; Based on food items.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (tm<1; multiple spawning per year; Fec=20-150).
Vulnerability (Ref. 59153
): Low vulnerability (19 of 100) .