Save the Little Fish

Saving the world’s tropical fish, one tank at a time.

Freshwater fishes

The fish list

499 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.

Loaches 4 fish

Butterfly hillstream loach

Butterfly hillstream loach ≈

Loaches · Beaufortia

  • 20–24°C!
  • pH 6.5–7.5
  • Strong!
  • 3 in
  • Bottom
  • Veg
  • Peaceful
  • 3+ group
Fast rocky streams of southern China

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

Clown loach

Clown loach ≈

Loaches · Chromobotia

  • 25–30°C
  • pH 6–7.5
  • Gentle
  • 12 in!
  • Bottom
  • Mixed
  • Peaceful
  • 5+ group
Rivers of Borneo and Sumatra

Clown loach

Chromobotia macracanthus

Rivers of Borneo and Sumatra · river

Temperature
25–30°C
pH
6–7.5
Adult size
12 in · 30 cm
Flow
Gentle
Swims
Bottom
Temperament
Peaceful
Diet
Omnivore
Group
5+
Typical price
$8–20

Photo: Tommy Kronkvist, CC BY-SA 4.0

Hillstream loach

Hillstream loach ≈

Loaches · Sewellia

  • 20–24°C!
  • pH 6.5–7.5
  • Strong!
  • 2.4 in
  • Bottom
  • Veg
  • Peaceful
  • 3+ group
Fast mountain streams of central Vietnam

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

Kuhli loach

Kuhli loach ≈

Loaches · PangioStaple

  • 24–29°C
  • pH 5.5–7
  • Calm
  • 4 in
  • Bottom
  • Mixed
  • Peaceful
  • 5+ group
Peat swamp streams of Malaysia and Indonesia

Kuhli loach

Pangio kuhlii

Peat swamp streams of Malaysia and Indonesia · swamp or paddy

Temperature
24–29°C
pH
5.5–7
Adult size
4 in · 9 cm
Flow
Calm
Swims
Bottom
Temperament
Peaceful
Diet
Omnivore
Group
5+
Typical price
$4–8
Rarity
Pet-store staple

Photo: Robert Mollik, CC BY-SA 4.0

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