Hillstream loach
Sewellia lineolata
Fast mountain streams of central Vietnam · rapids
- Temperature
- 20–24°C
- pH
- 6.5–7.5
- Adult size
- 2.4 in · 6 cm
- Flow
- Strong
- Swims
- Bottom
- Temperament
- Peaceful
- Diet
- Grazer
- Group
- 3+
- Typical price
- $10–18
Photo: 5snake5, CC0
Freshwater fishes
The fish list
542 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.
The fishes 4 fish · new every day
Zebra danio
Danio rerio
Streams and paddies of India and Bangladesh · stream
- Temperature
- 18–26°C
- pH
- 6.5–8
- Adult size
- 2 in · 5 cm
- Flow
- Strong
- Swims
- Top and mid-water
- Temperament
- Peaceful
- Diet
- Omnivore
- Group
- 6+
- Typical price
- $2–4
- Rarity
- Pet-store staple
Photo: Roundish, CC0
Zebra
L046Hypancistrus zebra
Volta Grande of the Rio Xingu, Brazil · rapids
- Temperature
- 26–30°C
- pH
- 6–7.5
- Adult size
- 3 in · 8 cm
- Flow
- Strong
- Swims
- Bottom
- Temperament
- Peaceful
- Diet
- Omnivore
- Breeding
- Moderate, slow
- Typical price
- $150–500
- In Canada
- Occasional
- Status in the wild
- Critically endangered
Brazil banned wild export, so Canadian stock is tank-bred. Clean, even stripes where L236 are broken and patchy.
Photo: Birger A, CC BY-SA 3.0
Butterfly hillstream loach
Beaufortia kweichowensis
Fast rocky streams of southern China · rapids
- Temperature
- 20–24°C
- pH
- 6.5–7.5
- Adult size
- 3 in · 8 cm
- Flow
- Strong
- Swims
- Bottom
- Temperament
- Peaceful
- Diet
- Grazer
- Group
- 3+
- Typical price
- $10–18
Photo: Lerdsuwa, CC BY-SA 3.0
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