HomeCompare fishBrilliant rasbora vs Northern trout gudgeon Brilliant rasbora vs Northern trout gudgeon: can they live together? Verdict: With cautionThe Northern trout gudgeon can be semi-aggressive or nip fins.Both are comfortable at 24–26°C (75–79°F).A pH of 6.0–6.5 suits both.Minimum tank for the pair: 150 L (40 US gal)Side by sideBrilliant rasboraNorthern trout gudgeonAdult size9 cm (3.5 in)17.5 cm (6.9 in)Minimum tank110 L (29 US gal)150 L (40 US gal)Temperature22–26°C (72–79°F)24–26°C (75–79°F)pH6.0–6.56.0–7.8TemperamentPeacefulSemi-aggressiveCommunity tankGoodGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesBrilliant rasboraRasbora einthoveniiNorthern trout gudgeonMogurnda mogurnda