HomeCompare fishRedtail splitfin vs Black sharkminnow Redtail splitfin vs Black sharkminnow: can they live together? Verdict: Not recommendedThe Redtail splitfin can be semi-aggressive or nip fins.An adult Black sharkminnow is about 15 times the length of a Redtail splitfin and may eat it.Both are comfortable at 24–27°C (75–81°F).A pH of 6.5–7.5 suits both.Side by sideRedtail splitfinBlack sharkminnowAdult size6 cm (2.4 in)90 cm (35 in)Minimum tank75 L (20 US gal)475 L (125 US gal)Temperature15–32°C (59–90°F)24–27°C (75–81°F)pH6.0–8.06.5–7.5Hardness9–19 dGH (161–339 ppm)2–15 dGH (36–268 ppm)TemperamentSemi-aggressivePeacefulCommunity tankGoodGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesRedtail splitfinXenotoca eiseniBlack sharkminnowLabeo chrysophekadion