Fin's Fish Guide
The Pacific molly (Poecilia butleri) is a freshwater fish of the family Poeciliidae that grows up to 7 cm.
Description
The Pacific molly is a small livebearing fish of the family Poeciliidae from the Pacific slope of Central America, from Mexico to Costa Rica. The species reaches about 7 cm and has a stocky, olive to silvery-grey body; the male has an anal fin modified into a copulatory organ (gonopodium). It occurs in a wide variety of standing and flowing waters, but prefers sites with dense algal and plant growth. As an omnivore it feeds on algae, detritus and small invertebrates. Fertilisation is internal and the female bears live young.
Frequently asked questions
How do you recognise the Pacific molly?
The Pacific molly has an elongate, eel-like body, is mainly silver-grey and shows a plain pattern. Ovoviviparous molly of vegetated waters; related to the well-known aquarium mollies.
Where does the Pacific molly live?
The Pacific molly lives in fresh water and is mostly found around mixed bottom. Pacific slope of Central America, from Mexico to Costa Rica.
How big does the Pacific molly get?
The Pacific molly grows to a maximum of about 7 cm. On average the species is around 4 cm.
Is the Pacific molly dangerous to humans?
No, the Pacific molly is harmless to humans. None required: this species is harmless to humans.
Is the Pacific molly edible?
The Pacific molly is not usually eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
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Safety
Status & sources
Same genus Poecilia
More from the family Poeciliidae
Want the complete picture on the Pacific molly?
Point your camera at the fish and Fin names the species in seconds. Free, and the Pacific molly is one of 12,519 species in the app.