Glass catfish vs Northern trout gudgeon: can they live together?

Verdict: With caution

The Northern trout gudgeon can be semi-aggressive or nip fins.
Both are comfortable at 24–26°C (75–79°F).
A pH of 6.5–7.0 suits both.
Minimum tank for the pair: 150 L (40 US gal)

Side by side

	Glass catfish	Northern trout gudgeon
Adult size	15 cm (5.9 in)	17.5 cm (6.9 in)
Minimum tank	150 L (40 US gal)	150 L (40 US gal)
Temperature	21–26°C (70–79°F)	24–26°C (75–79°F)
pH	6.5–7.0	6.0–7.8
Hardness	8–18 dGH (143–321 ppm)	–
Temperament	Peaceful	Semi-aggressive
Community tank	Good	Good
Care level	Easy	Easy
Diet	Carnivore	Omnivore