Northern trout gudgeon vs Eyespot pufferfish: can they live together?

Verdict: With caution

  • The Eyespot pufferfish is best kept in a species tank.
  • The Eyespot pufferfish can be semi-aggressive or nip fins.
  • The Northern trout gudgeon can be semi-aggressive or nip fins.
  • The Northern trout gudgeon grows about twice as long as the Eyespot pufferfish; watch for bullying or predation.
  • Both are comfortable at 24–26°C (75–79°F).
  • A pH of 6.5–7.5 suits both.
  • Minimum tank for the pair: 150 L (40 US gal)

Side by side

Northern trout gudgeonEyespot pufferfish
Adult size17.5 cm (6.9 in)8 cm (3.1 in)
Minimum tank150 L (40 US gal)75 L (20 US gal)
Temperature24–26°C (75–79°F)22–26°C (72–79°F)
pH6.0–7.86.5–7.5
Hardness–5–12 dGH (89–214 ppm)
TemperamentSemi-aggressiveSemi-aggressive
Community tankGoodNot suitable
Care levelEasy–
DietOmnivoreOmnivore

Species profiles