HomeCompare fishGlass catfish vs Redtail splitfin Glass catfish vs Redtail splitfin: can they live together? Verdict: With cautionThe Redtail splitfin can be semi-aggressive or nip fins.The Glass catfish grows about twice as long as the Redtail splitfin; watch for bullying or predation.Both are comfortable at 21–26°C (70–79°F).A pH of 6.5–7.0 suits both.Minimum tank for the pair: 150 L (40 US gal)Side by sideGlass catfishRedtail splitfinAdult size15 cm (5.9 in)6 cm (2.4 in)Minimum tank150 L (40 US gal)75 L (20 US gal)Temperature21–26°C (70–79°F)15–32°C (59–90°F)pH6.5–7.06.0–8.0Hardness8–18 dGH (143–321 ppm)9–19 dGH (161–339 ppm)TemperamentPeacefulSemi-aggressiveCommunity tankGoodGoodCare levelEasyEasyDietCarnivoreOmnivoreSpecies profilesGlass catfishKryptopterus bicirrhisRedtail splitfinXenotoca eiseni