HomeCompare fishSpotted ctenopoma vs Northern trout gudgeon Spotted ctenopoma vs Northern trout gudgeon: can they live together? Verdict: Not recommendedThe Northern trout gudgeon can be semi-aggressive or nip fins.The Spotted ctenopoma is aggressive towards other fish.Both are comfortable at 24–25°C (75–77°F).A pH of 6.0–7.8 suits both.Side by sideSpotted ctenopomaNorthern trout gudgeonAdult size15 cm (5.9 in)17.5 cm (6.9 in)Minimum tank210 L (55 US gal)150 L (40 US gal)Temperature5–25°C (41–77°F)24–26°C (75–79°F)pH6.0–8.06.0–7.8Hardness5–12 dGH (89–214 ppm)–TemperamentAggressiveSemi-aggressiveCommunity tankGoodGoodCare levelEasyEasyDietCarnivoreOmnivoreSpecies profilesSpotted ctenopomaCtenopoma acutirostreNorthern trout gudgeonMogurnda mogurnda