HomeCompare fishSpotted ctenopoma vs Roundtail paradisefish Spotted ctenopoma vs Roundtail paradisefish: can they live together? Verdict: Not recommendedThe Roundtail paradisefish can be semi-aggressive or nip fins.The Spotted ctenopoma is aggressive towards other fish.The Spotted ctenopoma grows about twice as long as the Roundtail paradisefish; watch for bullying or predation.Both are comfortable at 16–25°C (61–77°F).A pH of 6.0–8.0 suits both.Side by sideSpotted ctenopomaRoundtail paradisefishAdult size15 cm (5.9 in)7 cm (2.8 in)Minimum tank210 L (55 US gal)115 L (30 US gal)Temperature5–25°C (41–77°F)16–26°C (61–79°F)pH6.0–8.06.0–8.0Hardness5–12 dGH (89–214 ppm)5–19 dGH (89–339 ppm)TemperamentAggressiveSemi-aggressiveCommunity tankGood–Care levelEasyEasyDietCarnivoreCarnivoreSpecies profilesSpotted ctenopomaCtenopoma acutirostreRoundtail paradisefishMacropodus opercularis