HomeCompare fishRedtail splitfin vs Butterfly splitfin Redtail splitfin vs Butterfly splitfin: can they live together? Verdict: With cautionThe Redtail splitfin can be semi-aggressive or nip fins.Both are comfortable at 26–32°C (79–90°F).A pH of 6.0–8.0 suits both.Minimum tank for the pair: 75 L (20 US gal)Side by sideRedtail splitfinButterfly splitfinAdult size6 cm (2.4 in)8 cm (3.1 in)Minimum tank75 L (20 US gal)75 L (20 US gal)Temperature15–32°C (59–90°F)26–32°C (79–90°F)pH6.0–8.06.0–8.0Hardness9–19 dGH (161–339 ppm)9–19 dGH (161–339 ppm)TemperamentSemi-aggressivePeacefulCommunity tankGoodGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesRedtail splitfinXenotoca eiseniButterfly splitfinAmeca splendens