Peacock gudgeon vs Violet goby: can they live together?

Verdict: Not recommended

The Violet goby is best kept in a species tank.
The Violet goby can be semi-aggressive or nip fins.
An adult Violet goby is about 7 times the length of a Peacock gudgeon and may eat it.
Both are comfortable at 22–25.6°C (72–78°F).
A pH of 7.0–7.8 suits both.

Side by side

	Peacock gudgeon	Violet goby
Adult size	7.6 cm (3 in)	50 cm (20 in)
Minimum tank	40 L (11 US gal)	210 L (55 US gal)
Temperature	22–25.6°C (72–78°F)	20–26°C (68–79°F)
pH	7.0–7.8	7.0–8.0
Hardness	–	9–19 dGH (161–339 ppm)
Temperament	Peaceful	Semi-aggressive
Community tank	–	Not suitable
Care level	Easy	Moderate
Diet	Omnivore	–