HomeCompare fishLake Kutubu rainbowfish vs Glass catfish Lake Kutubu rainbowfish vs Glass catfish: can they live together? Verdict: CompatibleBoth are comfortable at 21–24°C (70–75°F).A pH of 7.0 suits both.Minimum tank for the pair: 210 L (55 US gal)Side by sideLake Kutubu rainbowfishGlass catfishAdult size10 cm (3.9 in)15 cm (5.9 in)Minimum tank210 L (55 US gal)150 L (40 US gal)Temperature20–24°C (68–75°F)21–26°C (70–79°F)pH7.0–8.06.5–7.0Hardness9–12 dGH (161–214 ppm)8–18 dGH (143–321 ppm)TemperamentPeacefulPeacefulCommunity tankGoodGoodCare levelEasyEasyDietOmnivoreCarnivoreSpecies profilesLake Kutubu rainbowfishMelanotaenia lacustrisGlass catfishKryptopterus bicirrhis