HomeCompare fishBrilliant rasbora vs Redtail splitfin Brilliant rasbora vs Redtail splitfin: can they live together? Verdict: With cautionThe Redtail splitfin can be semi-aggressive or nip fins.Both are comfortable at 22–26°C (72–79°F).A pH of 6.0–6.5 suits both.Minimum tank for the pair: 110 L (29 US gal)Side by sideBrilliant rasboraRedtail splitfinAdult size9 cm (3.5 in)6 cm (2.4 in)Minimum tank110 L (29 US gal)75 L (20 US gal)Temperature22–26°C (72–79°F)15–32°C (59–90°F)pH6.0–6.56.0–8.0Hardness–9–19 dGH (161–339 ppm)TemperamentPeacefulSemi-aggressiveCommunity tankGoodGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesBrilliant rasboraRasbora einthoveniiRedtail splitfinXenotoca eiseni