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 6 fish

Agassiz's dwarf cichlid

Agassiz's dwarf cichlid

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Cichlids · ApistogrammaLC

Agassiz's dwarf cichlid

Apistogramma agassizii

Leaf-litter creeks and backwaters of the Amazon basin, Peru to Brazil · stream

Temperature: 22–29°C
pH: 5–7
Adult size: 3 in · 7.5 cm
Flow: Calm
Swims: Bottom
Temperament: Peaceful
Diet: Carnivore
Group: 3+
Status in the wild: Least concern

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Photo: Cisamarc, CC BY-SA 3.0

Discus

Discus

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Cichlids · SymphysodonLC

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

Discus

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

Tiger peckoltia

L002

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Plecos · PeckoltiaUncommon

A small, easy Peckoltia with dark vermiculation on gold.

Tiger peckoltia

L002

Peckoltia vermiculata

Lower Amazon near Santarém, Brazil · river

Temperature: 25–29°C
pH: 5.5–7.5
Adult size: 4 in · 10 cm
Flow: Gentle
Swims: Bottom
Temperament: Peaceful
Diet: Omnivore
Breeding: Moderate
Typical price: $30–60
In Canada: Occasional
Rarity: Uncommon

A small, easy Peckoltia with dark vermiculation on gold. Peaceful and a good community pleco.

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Golden pencilfish

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Tetras · NannostomusStaple

Golden pencilfish

Nannostomus beckfordi

Amazon basin and the Guianas · blackwater stream

Temperature: 24–28°C
pH: 5.5–7.5
Adult size: 1.8 in · 4.5 cm
Flow: Calm
Swims: Top and mid-water
Temperament: Peaceful
Diet: Omnivore
Group: 6+
Typical price: $3–6
Rarity: Pet-store staple

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