HomeCompare fishGoldeneye cichlid vs Northern trout gudgeon Goldeneye cichlid 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 Goldeneye cichlid; watch for bullying or predation.Both are comfortable at 24–26°C (75–79°F).A pH of 6.0–7.8 suits both.Minimum tank for the pair: 150 L (40 US gal)Side by sideGoldeneye cichlidNorthern trout gudgeonAdult size7.5 cm (3 in)17.5 cm (6.9 in)Minimum tank75 L (20 US gal)150 L (40 US gal)Temperature24–27°C (75–81°F)24–26°C (75–79°F)pH6.0–8.06.0–7.8Hardness5–19 dGH (89–339 ppm)–TemperamentPeacefulSemi-aggressiveCommunity tankGoodGoodCare levelEasyEasyDietCarnivoreOmnivoreSpecies profilesGoldeneye cichlidNannacara anomalaNorthern trout gudgeonMogurnda mogurnda