HomeCompare fishGarnet tetra vs Redtail splitfin Garnet tetra vs Redtail splitfin: can they live together? Verdict: With cautionThe Redtail splitfin can be semi-aggressive or nip fins.Both are comfortable at 23–27°C (73–81°F).A pH of 6.0 suits both.Minimum tank for the pair: 75 L (20 US gal)Side by sideGarnet tetraRedtail splitfinAdult size5 cm (2 in)6 cm (2.4 in)Minimum tank55 L (15 US gal)75 L (20 US gal)Temperature23–27°C (73–81°F)15–32°C (59–90°F)pH5.0–6.06.0–8.0Hardness5–12 dGH (89–214 ppm)9–19 dGH (161–339 ppm)TemperamentPeacefulSemi-aggressiveCommunity tankExcellentGoodCare level–EasyDietOmnivoreOmnivoreSpecies profilesGarnet tetraHemigrammus pulcherRedtail splitfinXenotoca eiseni