Peacock gudgeon vs Northern trout gudgeon: can they live together?

Verdict: With caution

  • The Northern trout gudgeon can be semi-aggressive or nip fins.
  • The Northern trout gudgeon grows about twice as long as the Peacock gudgeon; watch for bullying or predation.
  • Both are comfortable at 24–25.6°C (75–78°F).
  • A pH of 7.0–7.8 suits both.
  • Minimum tank for the pair: 150 L (40 US gal)

Side by side

Peacock gudgeonNorthern trout gudgeon
Adult size7.6 cm (3 in)17.5 cm (6.9 in)
Minimum tank40 L (11 US gal)150 L (40 US gal)
Temperature22–25.6°C (72–78°F)24–26°C (75–79°F)
pH7.0–7.86.0–7.8
TemperamentPeacefulSemi-aggressive
Community tank–Good
Care levelEasyEasy
DietOmnivoreOmnivore

Species profiles