Best fish for a 125 gallon tank

A 125 gallon tank holds 473 litres and is about 72 inches (183 cm) wide. 100 of the 100 species on this site fit it.

Stockings that work

Showpiece angelfish tank

84% stockedHeater 76–79°FpH 6.5–7.0
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Goldfish group

72% stockedHeater 65–72°FpH 7.0–8.0
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Livebearer colony

42% stockedHeater 72–78°FpH 7.5–7.8
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Discus tank

77% stockedHeater 80–82°FpH 6.0–7.0
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Clown loach group

96% stockedHeater 77–82°FpH 6.0–7.5
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Bala shark school

64% stockedHeater 73–81°FpH 6.5–7.5
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Fish that fit

Neon tetra

10 gal+70–81°FpH 6.0–7.0Groups of 6+

Cardinal tetra

20 gal+73–84°FpH 5.0–7.0Groups of 6+

Ember tetra

10 gal+73–84°FpH 5.5–7.0Groups of 6+

Harlequin rasbora

10 gal+72–80°FpH 6.0–7.5Groups of 6+

Chili rasbora

5 gal+68–82°FpH 4.0–7.0Groups of 6+

Zebra danio

10 gal+64–77°FpH 6.5–7.5Groups of 6+

White cloud minnow

10 gal+60–72°FpH 6.0–8.0Groups of 6+

Guppy

5 gal+72–82°FpH 6.8–7.8Groups of 3+

Platy

10 gal+70–80°FpH 7.0–8.2Groups of 3+

Molly

20 gal+72–82°FpH 7.5–8.5Groups of 3+

Betta (male)

5 gal+76–82°FpH 6.5–7.5

Dwarf gourami

10 gal+72–82°FpH 6.0–7.5

Bronze corydoras

20 gal+72–79°FpH 6.0–7.5Groups of 6+

Pygmy corydoras

10 gal+72–79°FpH 6.4–7.4Groups of 6+

Otocinclus

10 gal+72–79°FpH 6.0–7.5Groups of 4+

Bristlenose pleco

29 gal+73–81°FpH 6.5–7.5

Kuhli loach

20 gal+75–86°FpH 5.5–7.0Groups of 5+

Angelfish

29 gal+76–84°FpH 6.0–7.5

Tiger barb

20 gal+68–79°FpH 6.0–7.5Groups of 6+

Cherry barb

20 gal+73–81°FpH 6.0–7.5Groups of 6+

Fancy goldfish

20 gal+65–72°FpH 7.0–8.0

Cherry shrimp

5 gal+65–80°FpH 6.5–8.0Groups of 6+

Amano shrimp

10 gal+70–80°FpH 6.5–7.5Groups of 3+

Nerite snail

5 gal+72–78°FpH 7.0–8.5

Black skirt tetra

20 gal+70–82°FpH 6.0–7.5Groups of 6+

Glowlight tetra

10 gal+72–80°FpH 5.5–7.5Groups of 6+

Rummynose tetra

20 gal+75–84°FpH 5.5–7.0Groups of 8+

Black neon tetra

20 gal+72–80°FpH 5.5–7.5Groups of 6+

Lemon tetra

20 gal+72–82°FpH 5.5–7.5Groups of 6+

Serpae tetra

20 gal+72–79°FpH 5.5–7.5Groups of 8+

Bleeding heart tetra

29 gal+72–80°FpH 6.0–7.5Groups of 6+

Congo tetra

40 gal+73–82°FpH 6.0–7.5Groups of 6+

Diamond tetra

20 gal+72–82°FpH 6.0–7.5Groups of 6+

X-ray tetra

10 gal+72–82°FpH 6.0–8.0Groups of 6+

Green neon tetra

10 gal+75–84°FpH 5.0–6.5Groups of 8+

Marbled hatchetfish

20 gal+73–81°FpH 5.5–7.0Groups of 6+

Scissortail rasbora

29 gal+72–79°FpH 6.0–7.5Groups of 6+

Lambchop rasbora

10 gal+73–82°FpH 6.0–7.5Groups of 6+

Celestial pearl danio

10 gal+68–78°FpH 6.5–7.5Groups of 6+

Giant danio

55 gal+72–79°FpH 6.0–7.5Groups of 6+

Rosy barb

29 gal+64–77°FpH 6.0–7.5Groups of 6+

Gold barb

20 gal+64–75°FpH 6.0–7.5Groups of 6+

Denison barb

55 gal+65–77°FpH 6.5–7.8Groups of 6+

Rainbow shark

55 gal+72–79°FpH 6.5–7.5

Red-tailed black shark

55 gal+72–79°FpH 6.5–7.5

Siamese algae eater

40 gal+75–79°FpH 6.5–7.5

Hillstream loach

20 gal+68–75°FpH 6.5–7.5Groups of 3+

Swordtail

29 gal+72–79°FpH 7.0–8.3Groups of 3+

Endler's livebearer

5 gal+72–82°FpH 7.0–8.5Groups of 3+

Sailfin molly

29 gal+75–82°FpH 7.5–8.5Groups of 3+

Pearl gourami

29 gal+75–82°FpH 6.0–7.5

Honey gourami

10 gal+72–82°FpH 6.0–7.5

Three-spot blue gourami

40 gal+73–82°FpH 6.0–8.0

Sparkling gourami

10 gal+72–81°FpH 6.0–7.5

Paradise fish

20 gal+61–79°FpH 6.0–8.0

Female betta

5 gal+76–82°FpH 6.5–7.5

German blue ram

20 gal+78–85°FpH 5.5–7.0

Bolivian ram

29 gal+72–79°FpH 6.0–7.5

Cockatoo dwarf cichlid

20 gal+72–82°FpH 6.0–7.5

Kribensis

20 gal+75–81°FpH 6.0–7.5

Firemouth cichlid

40 gal+75–82°FpH 6.5–8.0

Convict cichlid

29 gal+68–80°FpH 6.5–8.0

Oscar

75 gal+74–81°FpH 6.0–8.0

Jack Dempsey

55 gal+72–82°FpH 6.5–8.0

Severum

75 gal+74–84°FpH 6.0–7.5

Discus

55 gal+80–86°FpH 5.5–7.0Groups of 5+

Electric yellow lab

40 gal+74–82°FpH 7.5–8.6Groups of 4+

Peacock cichlid

55 gal+74–82°FpH 7.5–8.6

Shell dweller

10 gal+75–81°FpH 7.5–9.0Groups of 4+

Electric blue acara

40 gal+72–82°FpH 6.5–8.0

Panda corydoras

20 gal+68–77°FpH 6.0–7.5Groups of 6+

Peppered corydoras

20 gal+64–77°FpH 6.0–7.5Groups of 6+

Sterbai corydoras

20 gal+75–82°FpH 6.0–7.5Groups of 6+

Clown loach

125 gal+77–86°FpH 6.0–7.5Groups of 5+

Yoyo loach

40 gal+75–82°FpH 6.5–7.5Groups of 5+

Dwarf chain loach

20 gal+72–82°FpH 6.0–7.5Groups of 6+

Clown pleco

20 gal+73–82°FpH 6.5–7.5

Common pleco

125 gal+72–82°FpH 6.5–7.5

Rubber lip pleco

29 gal+68–78°FpH 6.5–8.0

Pictus catfish

55 gal+72–79°FpH 6.0–7.5Groups of 3+

Glass catfish

29 gal+75–80°FpH 6.0–7.5Groups of 6+

Chinese algae eater

55 gal+72–82°FpH 6.0–8.0

Boeseman's rainbowfish

55 gal+75–82°FpH 7.0–8.0Groups of 6+

Dwarf neon rainbowfish

20 gal+72–79°FpH 6.5–7.5Groups of 6+

Threadfin rainbowfish

20 gal+73–82°FpH 6.0–7.5Groups of 6+

Golden wonder killifish

20 gal+72–79°FpH 6.0–7.5

Clown killifish

5 gal+73–79°FpH 6.0–7.0Groups of 6+

Pea puffer

5 gal+74–82°FpH 6.8–7.8

Bala shark

125 gal+72–82°FpH 6.5–7.8Groups of 5+

Common goldfish

75 gal+60–72°FpH 7.0–8.0

Dojo loach

55 gal+59–77°FpH 6.5–8.0Groups of 3+

Japanese rice fish

10 gal+64–75°FpH 7.0–8.0Groups of 6+

Mystery snail

5 gal+68–82°FpH 7.0–8.0

Ramshorn snail

5 gal+64–82°FpH 7.0–8.0

Assassin snail

10 gal+70–82°FpH 6.5–8.0

Ghost shrimp

5 gal+65–82°FpH 7.0–8.0Groups of 3+

Bamboo shrimp

20 gal+73–82°FpH 6.5–7.5

Crystal red shrimp

10 gal+68–76°FpH 5.8–6.8Groups of 6+

Dwarf orange crayfish

10 gal+65–78°FpH 6.5–8.0

African dwarf frog

10 gal+72–78°FpH 6.5–7.8Groups of 2+

Other sizes