Sailfin molly

A large molly. Males raise a dorsal fin like a sail. It needs hard, alkaline water to stay healthy.

Sailfin molly, side view

Care at a glance

Minimum tank29 gallons (110 L)
Temperature75–82°F (24–28°C)
pH7.5–8.5
How manyKeep at least 3 together
Adult size5 in (12.7 cm)
TemperamentPeaceful
Where it livesThe middle of the tank
TypeFish

Things to know

  • Its long fins are a target for fin nippers such as tiger barbs and serpae tetras.

Good tank mates

Possible with care

Do not mix with

Open any pairing to see the reason.

Tank sizes that fit