HomeCompare fishLake Kutubu rainbowfish vs Striped barb Lake Kutubu rainbowfish vs Striped barb: can they live together? Verdict: With cautionTheir preferred pH ranges don't overlap.Both are comfortable at 23–24°C (73–75°F).Minimum tank for the pair: 210 L (55 US gal)Side by sideLake Kutubu rainbowfishStriped barbAdult size10 cm (3.9 in)12 cm (4.7 in)Minimum tank210 L (55 US gal)210 L (55 US gal)Temperature20–24°C (68–75°F)23–26°C (73–79°F)pH7.0–8.06.0–6.5Hardness9–12 dGH (161–214 ppm)2–12 dGH (36–214 ppm)TemperamentPeacefulPeacefulCommunity tankGoodExcellentCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesLake Kutubu rainbowfishMelanotaenia lacustrisStriped barbPuntius johorensis