Tank mates for peacock gudgeons

We checked peacock gudgeons against all 149 other species in our database for water temperature, pH, size, fin nipping, predation and aggression.

Good tank mates for peacock gudgeons include betta fish, cherry shrimp, nerite snail, guppy, dwarf gourami and neon tetra. Avoid oscar, chinese algae eater and convict cichlid: oscar can eat peacock gudgeons: they're small enough to fit in its mouth once it's grown.

Peacock gudgeons: 22–26°C (72–79°F), pH 6.5–7.5, adult size 6 cm (2.4 in), minimum tank 15 gallons (57 L). Full peacock gudgeon care guide.

Check a full stocking plan

Good Compatible tank mates (95)

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

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 peacock gudgeons.
  • Bristlenose pleco · 20+ gal
    • Bristlenose pleco defends its patch of the bottom and may chase peacock gudgeons, 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 peacock gudgeons, 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 peacock gudgeons.
  • Bala shark · 230+ gal
    • Bala shark may eat peacock gudgeons, especially young or small ones.
  • Blood parrot cichlid · 55+ gal
    • Blood parrot cichlid is semi-aggressive and may bully much smaller peacock gudgeons.
  • 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 peacock gudgeons 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 peacock gudgeons, especially young or small ones.
    • Electric blue acara is semi-aggressive and may bully much smaller peacock gudgeons.
    • Electric blue acara defends its patch of the bottom and may chase peacock gudgeons, which use the same area.
  • Firemouth cichlid · 29+ gal
    • Firemouth cichlid is semi-aggressive and may bully much smaller peacock gudgeons.
    • Firemouth cichlid defends its patch of the bottom and may chase peacock gudgeons, 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 peacock gudgeons, which use the same area.
  • Molly · 29+ gal
    • One prefers soft water and the other hard water (GH 5–10 vs 15–30 dGH).
  • Pictus catfish · 75+ gal
    • Pictus catfish may eat peacock gudgeons, especially young or small ones.
  • Rainbow shark · 75+ gal
    • Rainbow shark is semi-aggressive and may bully much smaller peacock gudgeons.
    • Rainbow shark defends its patch of the bottom and may chase peacock gudgeons, which use the same area.
  • Red-tail shark · 75+ gal
    • Red-tail shark defends its patch of the bottom and may chase peacock gudgeons, 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.
  • 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 peacock gudgeons, which use the same area.
  • Bolivian ram · 29+ gal
    • Bolivian ram defends its patch of the bottom and may chase peacock gudgeons, which use the same area.
  • Buenos Aires tetra · 29+ gal
    • Buenos Aires tetra nips fins and can stress slow, peaceful fish like peacock gudgeons.
  • Cockatoo cichlid · 20+ gal
    • Cockatoo cichlid defends its patch of the bottom and may chase peacock gudgeons, 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 peacock gudgeons.
  • 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 peacock gudgeons, especially young or small ones.
  • Rubber lip pleco · 29+ gal
    • Rubber lip pleco defends its patch of the bottom and may chase peacock gudgeons, which use the same area.
  • Serpae tetra · 20+ gal
    • Serpae tetra nips fins and can stress slow, peaceful fish like peacock gudgeons.
  • Severum · 55+ gal
    • Severum may eat peacock gudgeons, especially young or small ones.
    • Severum is semi-aggressive and may bully much smaller peacock gudgeons.
  • 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 peacock gudgeons, 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 peacock gudgeons: 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 peacock gudgeons.
  • Convict cichlid: Convict cichlid is aggressive and will bully or injure peaceful peacock gudgeons.
  • Discus: They need different temperatures: Peacock gudgeon 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. Peacock gudgeons don't belong in that setup.
  • German blue ram: They need different temperatures: Peacock gudgeon 22–26°C (72–79°F), german blue ram 27–30°C (81–86°F).
  • Jack Dempsey: Jack Dempsey can eat peacock gudgeons: they're small enough to fit in its mouth once it's grown. Jack Dempsey is aggressive and will bully or injure peaceful peacock gudgeons.
  • Pea puffer: Pea puffer is aggressive and will bully or injure peaceful peacock gudgeons. 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. Peacock gudgeons don't belong in that setup.
  • Red zebra cichlid: Red zebra cichlid is aggressive and will bully or injure peaceful peacock gudgeons. 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. Peacock gudgeons don't belong in that setup.
  • Senegal bichir: Senegal bichir can eat peacock gudgeons: they're small enough to fit in its mouth once it's grown.
  • Black ghost knifefish: Black ghost knifefish can eat peacock gudgeons: 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 peacock gudgeons. 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. Peacock gudgeons don't belong in that setup.
  • Frontosa: Frontosa can eat peacock gudgeons: 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. Peacock gudgeons don't belong in that setup.
  • Green terror: Green terror can eat peacock gudgeons: they're small enough to fit in its mouth once it's grown. Green terror is aggressive and will bully or injure peaceful peacock gudgeons.
  • Jewel cichlid: Jewel cichlid is aggressive and will bully or injure peaceful peacock gudgeons.
  • 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. Peacock gudgeons don't belong in that setup.
  • Tinfoil barb: Tinfoil barb can eat peacock gudgeons: they're small enough to fit in its mouth once it's grown.

Frequently asked questions

What fish can live with peacock gudgeons?

Good tank mates for peacock gudgeons include betta fish, cherry shrimp, nerite snail, guppy, dwarf gourami and neon tetra. They need similar water and won't fight with or eat peacock gudgeons.

Can peacock gudgeons live with angelfish?

Sometimes, with care. Angelfish is semi-aggressive and may bully much smaller peacock gudgeons.

Can peacock gudgeons live with bettas?

Yes. They share similar water needs (24–26°C (75–79°F)) and peaceful temperaments.

Can peacock gudgeons live with bristlenose plecos?

Sometimes, with care. Bristlenose pleco defends its patch of the bottom and may chase peacock gudgeons, which use the same area.

Can peacock gudgeons live with bronze corydoras?

Yes. They share similar water needs (22–26°C (72–79°F)) and peaceful temperaments.

How we decide: we compare each pair's comfortable temperature, pH and hardness ranges, adult sizes, mouth size (who can eat whom), fin nipping, aggression and territory. Read the full method. Data last reviewed 2026-10-13.