

A silver form of the Yucatan sailfin molly for hard, alkaline aquariums with open swimming room. Moderate care, peaceful. 25-28C, pH 7.5-8.5.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Photos are AI-enhanced, so the animal may show subtle colour or marking differences.
Poecilia velifera
A silver form of the Yucatan sailfin molly for hard, alkaline aquariums with open swimming room. Moderate care, peaceful. 25-28C, pH 7.5-8.5.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Photos are AI-enhanced, so the animal may show subtle colour or marking differences.

Lively, colourful livebearers for hard UK water, including black, dalmatian, sailfin and lyretail varieties with careful UK dispatch available.
Maintain these water conditions for optimal health and vibrant colors
Silver Sailfin Molly is best listed as Poecilia velifera. The page now keeps the species clear and focuses on the hard, alkaline water sailfin mollies need.
Provide hard, alkaline water, open swimming space, planted edges and regular vegetable-rich feeding. Avoid soft acidic water and sudden changes, as sailfin mollies do best in mineral-rich systems.
A peaceful livebearer for other hard-water community fish. Keep males with enough space and females to reduce chasing, and avoid soft-water species that need very different conditions.
Eligible livestock orders are covered by our Live Arrival Guarantee. Livestock is packed for licensed live-animal courier travel.



24–28°C · pH 7.2–8.2 · 90L

20–28°C · pH 7–8.2 · 60L


18–26°C · pH 6.5–8 · 30L

23–27°C · pH 7.4–8.4 · 500L

20–27°C · pH 6–7 · 54L

23–27°C · pH 7.4–8.4 · 150L

24–28°C · pH 6.5–7.8 · 300L

20–24°C · pH 7–8 · 45L

24–28°C · pH 6.5–7.5 · 2000L

24–28°C · pH 7.5–8.5 · 200L

24–28°C · pH 5.5–7 · 60L

18–25°C · pH 6–8 · 100L

24–28°C · pH 7–8 · 120L

18–28°C · pH 6.5–8 · 20L

24–27°C · pH 7.5–8.8 · 150L

22–26°C · pH 6–7.5 · 60L

24–28°C · pH 7.5–8.5 · 40L

24–28°C · pH 7.5–8.5 · 500L