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Sailfin molly (Poecilia latipinna)
Photo: (c) Nick Tobler (Cowturtle), some rights reserved (CC BY) · CC BY 4.0 via Wikimedia Commons

Sailfin molly

Poecilia latipinna · Poeciliidae

Also known as Giant sailfin molly

Beginner

The molly that really benefits from salt: big dorsal sail, hard water, and constant grazing.

Minimum tank
110 L
Temperature
24–28 °C
pH
7.5–8.5
Adult size
12 cm
Group size
4+
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Care requirements
Minimum tank volume
110 L
Temperature
24–28 °C
pH
7.5–8.5
Hardness
12–30 dGH
Lifespan
3–5 years
Diet
Omnivore — algae-based flake, spirulina, blanched veg, frozen foods.
Care level
Beginner
Origin & habitat
Native region
Southeast USA and Mexico coasts
Water type
Brackish
Biotope
Coastal ditches and estuaries with dense algae
Natural conditions
Hard alkaline water; a little marine salt (1.002–1.008) reduces disease.
Behaviour & stocking
Temperament
Peaceful
Minimum group
4 fish
Swims
All levels
Good tank mates
Platy
Swordtail
Glassfish
Knight goby
Avoid
Soft acidic tanks
Fin nippers
Breeding & difficulty
Breeding difficulty
Beginner
Sexing
Males have a gonopodium and a tall dorsal fin.
Notes
Livebearer; broods of 20–80 every few weeks.
Common ailments
Shimmies in soft water
Ich
Columnaris

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