Tank mates for julii corydoras

Good Compatible tank mates (95)

Shared water conditions and no known conflict. Still add fish slowly and watch them.

• Betta fish

  6.5 cm (2.6 in) · 5+ gal

• Bronze corydoras

  7 cm (2.8 in) · 20+ gal · groups of 6+

• Cherry shrimp

  3 cm (1.2 in) · 5+ gal · groups of 10+

  Julii corydoras will pick off baby cherry shrimp, so the colony grows slowly. Dense plants help.

• Dwarf gourami

  7.5 cm (3 in) · 15+ gal

• Guppy

  5 cm (2 in) · 10+ gal · groups of 3+

• Neon tetra

  3.5 cm (1.4 in) · 15+ gal · groups of 8+

• Nerite snail

  2.5 cm (1 in) · 5+ gal

• Panda corydoras

  4.5 cm (1.8 in) · 15+ gal · groups of 6+

• Zebra danio

  5 cm (2 in) · 20+ gal · groups of 6+

• African dwarf frog

  3.5 cm (1.4 in) · 10+ gal · groups of 2+

• Amano shrimp

  4.5 cm (1.8 in) · 10+ gal · groups of 3+

  Julii corydoras will pick off baby amano shrimp, so the colony grows slowly. Dense plants help.

• Assassin snail

  2.5 cm (1 in) · 5+ gal

• Black skirt tetra

  6 cm (2.4 in) · 20+ gal · groups of 8+

• Cardinal tetra

  4 cm (1.6 in) · 15+ gal · groups of 8+

• Celestial pearl danio

  2.5 cm (1 in) · 10+ gal · groups of 8+

• Cherry barb

  5 cm (2 in) · 15+ gal · groups of 6+

• Chili rasbora

  2 cm (0.8 in) · 10+ gal · groups of 10+

• Denison barb

  13 cm (5.1 in) · 75+ gal · groups of 6+

• Dwarf neon rainbowfish

  6 cm (2.4 in) · 20+ gal · groups of 6+

• Ember tetra

  2 cm (0.8 in) · 10+ gal · groups of 8+

• Ghost shrimp

  4.5 cm (1.8 in) · 10+ gal · groups of 3+

  Julii corydoras will pick off baby ghost shrimp, so the colony grows slowly. Dense plants help.

• Glowlight tetra

  4 cm (1.6 in) · 15+ gal · groups of 6+

• Harlequin rasbora

  4.5 cm (1.8 in) · 15+ gal · groups of 8+

• Honey gourami

  5 cm (2 in) · 10+ gal

• Kuhli loach

  9 cm (3.5 in) · 20+ gal · groups of 6+

• Malaysian trumpet snail

  2.5 cm (1 in) · 10+ gal

• Molly

  10 cm (3.9 in) · 29+ gal · groups of 3+

• Mystery snail

  5 cm (2 in) · 10+ gal

• Otocinclus

  4 cm (1.6 in) · 20+ gal · groups of 6+

• Pearl gourami

  11.5 cm (4.5 in) · 29+ gal

• Peppered corydoras

  6.5 cm (2.6 in) · 20+ gal · groups of 6+

• Platy

  6 cm (2.4 in) · 15+ gal · groups of 3+

• Pygmy corydoras

  2.5 cm (1 in) · 10+ gal · groups of 10+

• Ramshorn snail

  2 cm (0.8 in) · 5+ gal

• Rummy-nose tetra

  5 cm (2 in) · 29+ gal · groups of 10+

• Siamese algae eater

  15 cm (5.9 in) · 55+ gal

• Silver dollar

  15 cm (5.9 in) · 75+ gal · groups of 5+

• Sterbai corydoras

  6.5 cm (2.6 in) · 20+ gal · groups of 6+

• X-ray tetra

  4.5 cm (1.8 in) · 15+ gal · groups of 6+

• Yoyo loach

  13 cm (5.1 in) · 75+ gal · groups of 5+

• African butterfly fish

  11 cm (4.3 in) · 29+ gal

• Bamboo shrimp

  8 cm (3.1 in) · 20+ gal

  Julii corydoras will pick off baby bamboo shrimp, so the colony grows slowly. Dense plants help.

• Black neon tetra

  4 cm (1.6 in) · 20+ gal · groups of 8+

• Black phantom tetra

  4 cm (1.6 in) · 20+ gal · groups of 6+

• Bleeding heart tetra

  6.5 cm (2.6 in) · 29+ gal · groups of 8+

• Bloodfin tetra

  5 cm (2 in) · 20+ gal · groups of 6+

• Bumblebee catfish

  7.5 cm (3 in) · 20+ gal

• Clown killifish

  3.5 cm (1.4 in) · 10+ gal · groups of 6+

• Clown pleco

  9 cm (3.5 in) · 20+ gal

• Congo tetra

  8 cm (3.1 in) · 40+ gal · groups of 6+

• Crystal red shrimp

  3 cm (1.2 in) · 10+ gal · groups of 10+

  Julii corydoras will pick off baby crystal red shrimp, so the colony grows slowly. Dense plants help.

• Diamond tetra

  6 cm (2.4 in) · 20+ gal · groups of 6+

• Dwarf chain loach

  6 cm (2.4 in) · 29+ gal · groups of 6+

• Emerald green corydoras

  8 cm (3.1 in) · 55+ gal · groups of 6+

• Emperor tetra

  5 cm (2 in) · 20+ gal · groups of 6+

• Endler's livebearer

  3 cm (1.2 in) · 10+ gal · groups of 3+

• Forktail blue-eye

  5 cm (2 in) · 20+ gal · groups of 8+

• Gardneri killifish

  6 cm (2.4 in) · 10+ gal

• Giant danio

  10 cm (3.9 in) · 55+ gal · groups of 6+

• Glass catfish

  7 cm (2.8 in) · 29+ gal · groups of 6+

• Golden wonder killifish

  9 cm (3.5 in) · 20+ gal

• Head and tail light tetra

  4.5 cm (1.8 in) · 20+ gal · groups of 6+

• Kubotai rasbora

  2 cm (0.8 in) · 15+ gal · groups of 10+

• Lambchop rasbora

  3.5 cm (1.4 in) · 15+ gal · groups of 8+

• Lemon tetra

  4.5 cm (1.8 in) · 20+ gal · groups of 8+

• Marbled hatchetfish

  3.5 cm (1.4 in) · 20+ gal · groups of 8+

• Odessa barb

  6 cm (2.4 in) · 20+ gal · groups of 6+

• Panda garra

  8.5 cm (3.3 in) · 29+ gal · groups of 3+

• Peacock gudgeon

  6 cm (2.4 in) · 15+ gal · groups of 2+

• Penguin tetra

  5 cm (2 in) · 20+ gal · groups of 6+

• Red rainbowfish

  12 cm (4.7 in) · 40+ gal · groups of 6+

• Rosy loach

  2.5 cm (1 in) · 15+ gal · groups of 8+

• Rosy tetra

  4 cm (1.6 in) · 20+ gal · groups of 6+

• Scarlet badis

  2 cm (0.8 in) · 10+ gal

• Scissortail rasbora

  12 cm (4.7 in) · 55+ gal · groups of 6+

• Sparkling gourami

  3.8 cm (1.5 in) · 10+ gal · groups of 2+

• Swordtail

  12 cm (4.7 in) · 29+ gal · groups of 4+

• Thai micro crab

  1 cm (0.4 in) · 5+ gal · groups of 5+

• Threadfin rainbowfish

  4 cm (1.6 in) · 20+ gal · groups of 6+

• Turquoise rainbowfish

  11 cm (4.3 in) · 29+ gal · groups of 6+

• Upside-down catfish

  9.5 cm (3.7 in) · 29+ gal · groups of 4+

• Vampire shrimp

  10 cm (3.9 in) · 20+ gal

  Julii corydoras will pick off baby vampire shrimp, so the colony grows slowly. Dense plants help.

• Zebra loach

  9 cm (3.5 in) · 29+ gal · groups of 5+

• Black ruby barb

  6 cm (2.4 in) · 20+ gal · groups of 6+

• Checkerboard barb

  5 cm (2 in) · 20+ gal · groups of 6+

• Dwarf rasbora

  2.5 cm (1 in) · 10+ gal · groups of 10+

• Flame tetra

  3 cm (1.2 in) · 15+ gal · groups of 8+

• Glowlight danio

  3.5 cm (1.4 in) · 20+ gal · groups of 6+

• Green neon tetra

  2.5 cm (1 in) · 10+ gal · groups of 10+

• Keyhole cichlid

  10 cm (3.9 in) · 29+ gal · groups of 2+

• Least killifish

  2.5 cm (1 in) · 10+ gal · groups of 6+

• Pearl danio

  6 cm (2.4 in) · 20+ gal · groups of 6+

• Silvertip tetra

  4.5 cm (1.8 in) · 20+ gal · groups of 8+

• Thick-lipped gourami

  9 cm (3.5 in) · 20+ gal

• Variatus platy

  6 cm (2.4 in) · 15+ gal · groups of 3+

Caution Possible, with care (36)

These can work in the right setup, but there is a real risk. Read the reason first.

• Angelfish · 29+ gal
  • Angelfish is semi-aggressive and may bully much smaller julii corydoras.
• Bristlenose pleco · 20+ gal
  • Bristlenose pleco defends its patch of the bottom and may chase julii corydoras, which use the same area.
• Common goldfish · 75+ gal
  • Their temperature ranges barely overlap (only around 22–22°C).
  • One is a cold-water species and the other is tropical, so neither will be at its best.
• Common pleco · 150+ gal
  • Common pleco defends its patch of the bottom and may chase julii corydoras, which use the same area.
• Fancy goldfish · 20+ gal
  • Their temperature ranges barely overlap (only around 22–23°C).
  • One is a cold-water species and the other is tropical, so neither will be at its best.
• Tiger barb · 29+ gal
  • Tiger barb nips fins and can stress slow, peaceful fish like julii corydoras.
• Bala shark · 230+ gal
  • Bala shark may eat julii corydoras, especially young or small ones.
• Blood parrot cichlid · 55+ gal
  • Blood parrot cichlid is semi-aggressive and may bully much smaller julii corydoras.
• Boesemani rainbowfish · 29+ gal
  • Their temperature ranges barely overlap (only around 26–26°C).
• Clown loach · 180+ gal
  • Their temperature ranges barely overlap (only around 25–26°C).
  • Clown loach grows much larger than julii corydoras and may swallow them as it grows.
• Dojo loach · 75+ gal
  • Their temperature ranges barely overlap (only around 22–23°C).
  • One is a cold-water species and the other is tropical, so neither will be at its best.
• Electric blue acara · 40+ gal
  • Electric blue acara may eat julii corydoras, especially young or small ones.
  • Electric blue acara is semi-aggressive and may bully much smaller julii corydoras.
  • Electric blue acara defends its patch of the bottom and may chase julii corydoras, which use the same area.
• Firemouth cichlid · 29+ gal
  • Firemouth cichlid is semi-aggressive and may bully much smaller julii corydoras.
  • Firemouth cichlid defends its patch of the bottom and may chase julii corydoras, which use the same area.
• Hillstream loach · 20+ gal
  • One is a cold-water species and the other is tropical, so neither will be at its best.
• Kribensis · 29+ gal
  • Kribensis defends its patch of the bottom and may chase julii corydoras, which use the same area.
• Pictus catfish · 75+ gal
  • Pictus catfish may eat julii corydoras, especially young or small ones.
• Rainbow shark · 75+ gal
  • Rainbow shark is semi-aggressive and may bully much smaller julii corydoras.
  • Rainbow shark defends its patch of the bottom and may chase julii corydoras, which use the same area.
• Red-tail shark · 75+ gal
  • Red-tail shark is semi-aggressive and may bully much smaller julii corydoras.
  • Red-tail shark defends its patch of the bottom and may chase julii corydoras, which use the same area.
• Rosy barb · 29+ gal
  • One is a cold-water species and the other is tropical, so neither will be at its best.
• Three spot gourami · 29+ gal
  • Three spot gourami is semi-aggressive and may bully much smaller julii corydoras.
• White cloud mountain minnow · 15+ gal
  • Their temperature ranges barely overlap (only around 22–22°C).
  • One is a cold-water species and the other is tropical, so neither will be at its best.
• Agassiz's dwarf cichlid · 20+ gal
  • Their temperature ranges barely overlap (only around 25–26°C).
  • Agassiz's dwarf cichlid defends its patch of the bottom and may chase julii corydoras, which use the same area.
• Bolivian ram · 29+ gal
  • Bolivian ram defends its patch of the bottom and may chase julii corydoras, which use the same area.
• Buenos Aires tetra · 29+ gal
  • Buenos Aires tetra nips fins and can stress slow, peaceful fish like julii corydoras.
• Cockatoo cichlid · 20+ gal
  • Cockatoo cichlid defends its patch of the bottom and may chase julii corydoras, which use the same area.
• Dwarf orange crayfish · 10+ gal
  • One is a cold-water species and the other is tropical, so neither will be at its best.
• Gold barb · 29+ gal
  • One is a cold-water species and the other is tropical, so neither will be at its best.
• Kissing gourami · 75+ gal
  • Kissing gourami is semi-aggressive and may bully much smaller julii corydoras.
• Paradise fish · 20+ gal
  • One is a cold-water species and the other is tropical, so neither will be at its best.
• Rabbit snail · 29+ gal
  • Their temperature ranges barely overlap (only around 25–26°C).
• Ropefish · 75+ gal
  • Ropefish may eat julii corydoras, especially young or small ones.
• Rubber lip pleco · 29+ gal
  • Rubber lip pleco defends its patch of the bottom and may chase julii corydoras, which use the same area.
• Serpae tetra · 20+ gal
  • Serpae tetra nips fins and can stress slow, peaceful fish like julii corydoras.
• Severum · 55+ gal
  • Severum may eat julii corydoras, especially young or small ones.
  • Severum is semi-aggressive and may bully much smaller julii corydoras.
• Zebra pleco · 20+ gal
  • Their temperature ranges barely overlap (only around 26–26°C).
  • Zebra pleco defends its patch of the bottom and may chase julii corydoras, which use the same area.
• Moonlight gourami · 29+ gal
  • Their temperature ranges barely overlap (only around 25–26°C).

Avoid Bad tank mates (18)

• Oscar: Oscar can eat julii corydoras: they're small enough to fit in its mouth once it's grown.
• Chinese algae eater: Chinese algae eater is aggressive and will bully or injure peaceful julii corydoras.
• Convict cichlid: Convict cichlid is aggressive and will bully or injure peaceful julii corydoras.
• Discus: They need different temperatures: Julii corydoras 22–26°C (72–79°F), discus 28–30°C (82–86°F).
• Electric yellow cichlid: Electric yellow cichlid is a Lake Malawi cichlid. It needs a Lake Malawi tank: hard, alkaline water (pH 7.5–8.5), plenty of rockwork and other cichlids from the same lake. Julii corydoras don't belong in that setup.
• German blue ram: They need different temperatures: Julii corydoras 22–26°C (72–79°F), german blue ram 27–30°C (81–86°F).
• Jack Dempsey: Jack Dempsey can eat julii corydoras: they're small enough to fit in its mouth once it's grown. Jack Dempsey is aggressive and will bully or injure peaceful julii corydoras.
• Pea puffer: Pea puffer is aggressive and will bully or injure peaceful julii corydoras. Pea puffer is best kept in a species-only tank.
• Peacock cichlid: Peacock cichlid is a Lake Malawi cichlid. It needs a Lake Malawi tank: hard, alkaline water (pH 7.5–8.5), plenty of rockwork and other cichlids from the same lake. Julii corydoras don't belong in that setup.
• Red zebra cichlid: Red zebra cichlid is aggressive and will bully or injure peaceful julii corydoras. Red zebra cichlid is a Lake Malawi cichlid. It needs a Lake Malawi tank: hard, alkaline water (pH 7.5–8.5), plenty of rockwork and other cichlids from the same lake. Julii corydoras don't belong in that setup.
• Senegal bichir: Senegal bichir can eat julii corydoras: they're small enough to fit in its mouth once it's grown.
• Black ghost knifefish: Black ghost knifefish can eat julii corydoras: they're small enough to fit in its mouth once it's grown.
• Demasoni cichlid: Demasoni cichlid is aggressive and will bully or injure peaceful julii corydoras. Demasoni cichlid is a Lake Malawi cichlid. It needs a Lake Malawi tank: hard, alkaline water (pH 7.5–8.5), plenty of rockwork and other cichlids from the same lake. Julii corydoras don't belong in that setup.
• Frontosa: Frontosa can eat julii corydoras: they're small enough to fit in its mouth once it's grown. Frontosa is a Lake Tanganyika cichlid. It needs a Lake Tanganyika tank: hard, alkaline water (pH 8–9), plenty of rockwork and other cichlids from the same lake. Julii corydoras don't belong in that setup.
• Green terror: Green terror can eat julii corydoras: they're small enough to fit in its mouth once it's grown. Green terror is aggressive and will bully or injure peaceful julii corydoras.
• Jewel cichlid: Jewel cichlid is aggressive and will bully or injure peaceful julii corydoras.
• Shell dweller cichlid: Shell dweller cichlid is a Lake Tanganyika cichlid. It needs a Lake Tanganyika tank: hard, alkaline water (pH 7.5–9), plenty of rockwork and other cichlids from the same lake. Julii corydoras don't belong in that setup.
• Tinfoil barb: Tinfoil barb can eat julii corydoras: they're small enough to fit in its mouth once it's grown.