HomeCompare fishCrescent betta vs Butterfly splitfin Crescent betta vs Butterfly splitfin: can they live together? Verdict: CompatibleBoth are comfortable at 26–30°C (79–86°F).A pH of 6.0–7.0 suits both.Minimum tank for the pair: 75 L (20 US gal)Side by sideCrescent bettaButterfly splitfinAdult size6 cm (2.4 in)8 cm (3.1 in)Minimum tank40 L (11 US gal)75 L (20 US gal)Temperature24–30°C (75–86°F)26–32°C (79–90°F)pH6.0–7.06.0–8.0Hardness5–19 dGH (89–339 ppm)9–19 dGH (161–339 ppm)TemperamentPeacefulPeacefulCommunity tankGoodGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesCrescent bettaBetta imbellisButterfly splitfinAmeca splendens