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.

The fishes 542 fish · new every day

Red zebra

Red zebra ≈

Cichlids · MaylandiaLC

Predator. Eats any fish that fits in its mouth.

Lake Malawi: Mozambique/Malawi east coast, Metangula and Minos Reef to Gome

Red zebra

Maylandia estherae

Lake Malawi: Mozambique/Malawi east coast, Metangula and Minos Reef to Gome · lake

Temperature
24–28°C
pH
7.6–8.8
Adult size
5 in · 13.5 cm
Flow
Gentle
Swims
Mid-water
Temperament
Semi-aggressive
Diet
Herbivore
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: Maha Dinesh, CC BY-SA 3.0

Similis shell-dweller

Similis shell-dweller ≈

Cichlids · Neolamprologus

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

Southern Lake Tanganyika (DR Congo, Tanzania): shell beds 10-45 m

Similis shell-dweller

Neolamprologus similis

Southern Lake Tanganyika (DR Congo, Tanzania): shell beds 10-45 m · lake

Temperature
24–27°C
pH
7.5–9
Adult size
1.8 in · 4.5 cm
Flow
Calm
Swims
Bottom
Temperament
Territorial
Diet
Carnivore
Group
2+

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

Photo: berzentei, Yvonne Turkans, CC BY-SA 3.0

Hi-fin green phantom

L200hf
Hi-fin green phantom ≈

Plecos · BaryancistrusRare

The hi-fin version, with a tall dorsal.

Upper Orinoco and Ventuari, Venezuela

Hi-fin green phantom

L200hf

Baryancistrus demantoides

Upper Orinoco and Ventuari, Venezuela · rapids

Temperature
27–30°C
pH
5.5–7.5
Adult size
6 in · 16 cm
Flow
Strong
Swims
Bottom
Temperament
Territorial
Diet
Omnivore
Breeding
Hard
Typical price
$100–250
In Canada
Rare
Rarity
Rare or hard to breed

The hi-fin version, with a tall dorsal. Territorial, and rarely bred.

Photo: Anne Blindheim, CC BY-SA 3.0

Starlight bristlenose

L183
Starlight bristlenose ≈

Plecos · AncistrusUncommon

Black with white stars and white fin edges.

Rio Negro, Brazil

Starlight bristlenose

L183

Ancistrus dolichopterus

Rio Negro, Brazil · river

Temperature
23–28°C
pH
5.5–7.5
Adult size
6 in · 15 cm
Flow
Gentle
Swims
Bottom
Temperament
Peaceful
Diet
Omnivore
Breeding
Easy–moderate
Typical price
$25–80
In Canada
Occasional
Rarity
Uncommon

Black with white stars and white fin edges. The prettiest bristlenose, but it prefers cooler, soft water.

Photo: Alberto Mejia-Paniagua, CC BY NC SA

Dwarf gourami

Dwarf gourami ≈

Gouramis & bettas · Trichogaster

Lone male. Males fight. Keep one, or give each his own space.

Slow, plant-choked waters of India and Bangladesh

Dwarf gourami

Trichogaster lalius

Slow, plant-choked waters of India and Bangladesh · swamp or paddy

Temperature
24–28°C
pH
6–7.5
Adult size
2.8 in · 7 cm
Flow
Calm
Swims
Top and mid-water
Temperament
Peaceful
Diet
Omnivore
Group
1+
Typical price
$6–12

Lone male. Males fight. Keep one, or give each his own space.

Photo: Kennyannydenny, CC BY-SA 3.0

Blue acara

Blue acara ≈

Cichlids · AndinoacaraLC

Predator. Eats any fish that fits in its mouth.

Trinidad and northern Venezuela (incl. Apure llanos)

Blue acara

Andinoacara pulcher

Trinidad and northern Venezuela (incl. Apure llanos) · river

Temperature
22–28°C
pH
6.5–8
Adult size
6 in · 15 cm
Flow
Gentle
Swims
Mid-water
Temperament
Semi-aggressive
Diet
Carnivore
Group
2+
Status in the wild
Least concern

Predator. Eats any fish that fits in its mouth.

Photo: 5snake5, CC0

Showing 128 of 542