Horseface loach 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 25–26°C (77–79°F).
A pH of 6.0–7.0 suits both.
Minimum tank for the pair: 210 L (55 US gal)

Side by side

	Horseface loach	Northern trout gudgeon
Adult size	20 cm (7.9 in)	17.5 cm (6.9 in)
Minimum tank	210 L (55 US gal)	150 L (40 US gal)
Temperature	25–29°C (77–84°F)	24–26°C (75–79°F)
pH	6.0–7.0	6.0–7.8
Hardness	1–12 dGH (18–214 ppm)	–
Temperament	Peaceful	Semi-aggressive
Community tank	Good	Good
Care level	–	Easy
Diet	Omnivore	Omnivore