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Brackish fishes

The fish list

2 species, each with the water it needs, who it gets along with, and where it comes from. Find one, or browse by family, genus or river.

EndangeredRarePopular✓ PeacefulSmall (6 cm or less)✓ Calm waterStrong flowSchoolingL-numbersWith photo Basic profiles too

The fishes 1 fish · new every day

Molly

Molly ≈

Livebearers · PoeciliaStaple

  • 22–28°C
  • pH 7.5–8.5!
  • Calm
  • 3 in
  • Mid/top
  • Mixed
  • Peaceful
  • 3+ group
Coastal rivers, Mexico to Colombia

Molly

Poecilia sphenops

Coastal rivers, Mexico to Colombia · brackish estuary

Temperature
22–28°C
pH
7.5–8.5
Adult size
3 in · 8 cm
Flow
Calm
Swims
Mid-water and top
Temperament
Peaceful
Diet
Omnivore
Group
3+
Typical price
$3–7
Rarity
Pet-store staple
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Photo: Dnoerholm, CC BY-SA 4.0

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