HomeCompare fishRedtail splitfin vs Bold characodon Redtail splitfin vs Bold characodon: can they live together? Verdict: Not recommendedThe Bold characodon is best kept in a species tank.The Bold characodon is aggressive towards other fish.The Redtail splitfin can be semi-aggressive or nip fins.Both are comfortable at 22–24°C (72–75°F).A pH of 7.0–8.0 suits both.Side by sideRedtail splitfinBold characodonAdult size6 cm (2.4 in)5 cm (2 in)Minimum tank75 L (20 US gal)75 L (20 US gal)Temperature15–32°C (59–90°F)22–24°C (72–75°F)pH6.0–8.07.0–8.0Hardness9–19 dGH (161–339 ppm)6–20 dGH (107–357 ppm)TemperamentSemi-aggressiveAggressiveCommunity tankGoodNot suitableCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesRedtail splitfinXenotoca eiseniBold characodonCharacodon audax