Save the Little Fish

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.

Cichlids 25 fish

Agassiz's dwarf cichlid

Agassiz's dwarf cichlid ≈

Cichlids · ApistogrammaLC

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

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

Photo: Cisamarc, CC BY-SA 3.0

Altum angelfish

Altum angelfish ≈

Cichlids · PterophyllumLC

Predator. Eats any fish that fits in its mouth.

Upper Rio Negro and upper Orinoco tributaries (Inírida, Atabapo), Colombia/Venezuela

Altum angelfish

Pterophyllum altum

Upper Rio Negro and upper Orinoco tributaries (Inírida, Atabapo), Colombia/Venezuela · blackwater stream

Temperature
28–32°C
pH
4.8–6.2
Adult size
7 in · 18 cm
Flow
Calm
Swims
Mid-water
Temperament
Semi-aggressive
Diet
Carnivore
Group
6+
Status in the wild
Least concern

Predator. Eats any fish that fits in its mouth.

Photo: Jeff Kubina, CC BY-SA 4.0

Angelfish

Angelfish ≈

Cichlids · PterophyllumLC

Predator. Eats any fish that fits in its mouth.

Flooded forests of the Amazon basin

Angelfish

Pterophyllum scalare

Flooded forests of the Amazon basin · flooded forest

Temperature
24–30°C
pH
6–7.5
Adult size
6 in · 15 cm
Flow
Calm
Swims
Mid-water
Temperament
Semi-aggressive
Diet
Omnivore
Group
5+
Typical price
$8–30
Status in the wild
Least concern

Predator. Eats any fish that fits in its mouth.

Long fins. Fin nippers will pick on it.

Photo: Rjcastillo, CC BY 4.0

Balzanii

Balzanii ≈

Cichlids · GymnogeophagusLC

Paraná-Paraguay and lower Uruguay basins (Brazil, Paraguay, Argentina, Uruguay)

Balzanii

Gymnogeophagus balzanii

Paraná-Paraguay and lower Uruguay basins (Brazil, Paraguay, Argentina, Uruguay) · river

Temperature
21–25°C
pH
6.5–7.5
Adult size
8 in · 20 cm
Flow
Calm
Swims
Bottom
Temperament
Territorial
Diet
Omnivore
Group
3+
Status in the wild
Least concern

Photo: CHUCAO, CC BY-SA 3.0

Borelli's dwarf cichlid

Borelli's dwarf cichlid ≈

Cichlids · ApistogrammaLC

Creeks of the Paraguay, lower Parana and Uruguay systems (Brazil, Paraguay, Argentina, Uruguay)

Borelli's dwarf cichlid

Apistogramma borellii

Creeks of the Paraguay, lower Parana and Uruguay systems (Brazil, Paraguay, Argentina, Uruguay) · stream

Temperature
20–26°C
pH
5–8
Adult size
2.6 in · 6.5 cm
Flow
Calm
Swims
Bottom
Temperament
Peaceful
Diet
Carnivore
Group
2+
Status in the wild
Least concern

Photo: Dornenwolf, CC BY 4.0

Deep water hap

Deep water hap ≈

Cichlids · PlacidochromisLC

Predator. Eats any fish that fits in its mouth.

Lake Malawi: sandy bottoms below ~7 m at Likoma Island, Mara Point and Malawi coast south to Nekete

Deep water hap

Placidochromis electra

Lake Malawi: sandy bottoms below ~7 m at Likoma Island, Mara Point and Malawi coast south to Nekete · lake

Temperature
24–28°C
pH
7.6–8.8
Adult size
6 in · 16 cm
Flow
Calm
Swims
Mid-water
Temperament
Peaceful
Diet
Omnivore
Group
4+
Status in the wild
Least concern

Predator. Eats any fish that fits in its mouth.

Hard water. Needs hard, alkaline water, like its rift lake.

Photo: Paolo Neo, Public domain

Firemouth cichlid

Firemouth cichlid ≈

Cichlids · ThorichthysLC

Predator. Eats any fish that fits in its mouth.

Atlantic slope of S Mexico, Yucatán, Belize, Guatemala (Usumacinta)

Firemouth cichlid

Thorichthys meeki

Atlantic slope of S Mexico, Yucatán, Belize, Guatemala (Usumacinta) · river

Temperature
20–32°C
pH
6.5–8.5
Adult size
5 in · 12 cm
Flow
Calm
Swims
Bottom
Temperament
Territorial
Diet
Omnivore
Group
2+
Status in the wild
Least concern

Predator. Eats any fish that fits in its mouth.

Photo: Konstantin Gerasimov, CC BY 4.0

Frontosa

Frontosa ≈

Cichlids · CyphotilapiaNT

Predator. Eats any fish that fits in its mouth.

Northern Lake Tanganyika: deep rocky slopes 15-70 m, Cape Tembwe to Bulu Point

Frontosa

Cyphotilapia frontosa

Northern Lake Tanganyika: deep rocky slopes 15-70 m, Cape Tembwe to Bulu Point · lake

Temperature
23–27°C
pH
8–9
Adult size
10 in · 25.5 cm
Flow
Calm
Swims
Mid-water
Temperament
Semi-aggressive
Diet
Carnivore
Group
5+
Status in the wild
Near threatened

Predator. Eats any fish that fits in its mouth.

Hard water. Needs hard, alkaline water, like its rift lake.

Photo: Maha Dinesh, CC BY-SA 3.0

Jack Dempsey

Jack Dempsey ≈

Cichlids · RocioLC

Predator. Eats any fish that fits in its mouth.

Atlantic slope, S Mexico (Papaloapan) to Honduras (Ulúa)

Jack Dempsey

Rocio octofasciata

Atlantic slope, S Mexico (Papaloapan) to Honduras (Ulúa) · river

Temperature
20–30°C
pH
6.5–8
Adult size
8 in · 20 cm
Flow
Calm
Swims
Mid-water
Temperament
Aggressive
Diet
Omnivore
Group
2+
Status in the wild
Least concern

Predator. Eats any fish that fits in its mouth.

Photo: Bernard DUPONT, CC BY 4.0

Keyhole cichlid

Keyhole cichlid ≈

Cichlids · CleithracaraLC

Blackwater coastal creeks of the Guianas, Orinoco delta and Trinidad

Keyhole cichlid

Cleithracara maronii

Blackwater coastal creeks of the Guianas, Orinoco delta and Trinidad · blackwater stream

Temperature
21–28°C
pH
4–7.5
Adult size
4 in · 10 cm
Flow
Calm
Swims
Mid-water
Temperament
Peaceful
Diet
Omnivore
Group
2+
Status in the wild
Least concern

Photo: User:D.W., Public domain

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