HomeCompare fishOrnate ctenopoma vs Siamese fighting fish Ornate ctenopoma vs Siamese fighting fish: can they live together? Verdict: Not recommendedThe Siamese fighting fish can be semi-aggressive or nip fins.The Ornate ctenopoma is best kept in a species tank.The Ornate ctenopoma is aggressive towards other fish.Both are comfortable at 25–28°C (77–82°F).A pH of 6.0–8.0 suits both.Side by sideOrnate ctenopomaSiamese fighting fishAdult size8 cm (3.1 in)6.5 cm (2.6 in)Minimum tank115 L (30 US gal)20 L (5 US gal)Temperature25–28°C (77–82°F)24–30°C (75–86°F)pH6.0–8.06.0–8.0Hardness5–19 dGH (89–339 ppm)5–19 dGH (89–339 ppm)TemperamentAggressiveSemi-aggressiveCommunity tankNot suitableGoodCare levelEasyEasyDietCarnivoreOmnivoreSpecies profilesOrnate ctenopomaMicroctenopoma ansorgiiSiamese fighting fishBetta splendens