HomeCompare fishPeppered corydoras vs Northern trout gudgeon Peppered corydoras vs Northern trout gudgeon: can they live together? Verdict: With cautionThe Northern trout gudgeon can be semi-aggressive or nip fins.The Northern trout gudgeon grows about twice as long as the Peppered corydoras; watch for bullying or predation.Both are comfortable at 25–26°C (77–79°F).A pH of 6.0–7.8 suits both.Minimum tank for the pair: 150 L (40 US gal)Side by sidePeppered corydorasNorthern trout gudgeonAdult size8 cm (3.1 in)17.5 cm (6.9 in)Minimum tank75 L (20 US gal)150 L (40 US gal)Temperature25–28°C (77–82°F)24–26°C (75–79°F)pH6.0–7.86.0–7.8Hardness5–19 dGH (89–339 ppm)–TemperamentPeacefulSemi-aggressiveCommunity tankExcellentGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesPeppered corydorasCorydoras paleatusNorthern trout gudgeonMogurnda mogurnda