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.

Endangered Rare Popular ✓ Peaceful Small (6 cm or less)✓ Calm water Strong flow ✓ Schooling L-numbers ✓ With photo Basic profiles too

Showing: River & region: Amazon ✕

Amazon 3 fish

Discus

Discus

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Cichlids · SymphysodonLC

28–30°C!
pH 5–7
Calm
6 in
Mid
Meat
Peaceful
5+ group

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Symphysodon aequifasciatus

Floodplain lakes of the Amazon basin · flooded forest

Temperature: 28–30°C
pH: 5–7
Adult size: 6 in · 14 cm
Flow: Calm
Swims: Mid-water
Temperament: Peaceful
Diet: Carnivore
Group: 5+
Typical price: $60–200
Status in the wild: Least concern

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Photo: H. Zell, CC BY-SA 3.0

Marbled hatchetfish

Marbled hatchetfish

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Tetras · CarnegiellaStaple

Jumper. Keep a tight lid on the tank.

Marbled hatchetfish

Carnegiella strigata

Amazon basin, Peru and Brazil · blackwater stream

Temperature: 24–28°C
pH: 5.5–7
Adult size: 1.4 in · 3.5 cm
Flow: Calm
Swims: Top
Temperament: Peaceful
Diet: Carnivore
Group: 6+
Typical price: $4–8
Rarity: Pet-store staple

Jumper. Keep a tight lid on the tank.

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Photo: SOK, CC BY-SA 4.0

Neon tetra

Neon tetra

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Tetras · ParacheirodonStaple

20–26°C
pH 5–7
Calm
1.4 in
Mid
Mixed
Peaceful
6+ group!

Neon tetra

Paracheirodon innesi

Upper Amazon basin: Peru, Colombia, Brazil · blackwater stream

Temperature: 20–26°C
pH: 5–7
Adult size: 1.4 in · 3.5 cm
Flow: Calm
Swims: Mid-water
Temperament: Peaceful
Diet: Omnivore
Group: 6+
Typical price: $2–5
Rarity: Pet-store staple

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Photo: Holger Krisp, CC BY 3.0

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