HomeCompare fishBluespotted corydoras vs Northern trout gudgeon Bluespotted corydoras vs Northern trout gudgeon: can they live together? Verdict: Not recommendedThe Northern trout gudgeon can be semi-aggressive or nip fins.An adult Northern trout gudgeon is about 3 times the length of a Bluespotted corydoras and may eat it.Both are comfortable at 24–26°C (75–79°F).A pH of 6.0–7.8 suits both.Side by sideBluespotted corydorasNorthern trout gudgeonAdult size5.7 cm (2.2 in)17.5 cm (6.9 in)Minimum tank–150 L (40 US gal)Temperature22–26°C (72–79°F)24–26°C (75–79°F)pH6.0–8.06.0–7.8Hardness2–25 dGH (36–446 ppm)–TemperamentPeacefulSemi-aggressiveCommunity tankGoodGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesBluespotted corydorasCorydoras melanistiusNorthern trout gudgeonMogurnda mogurnda