HomeCompare fishClown rasbora vs Lake Kutubu rainbowfish Clown rasbora vs Lake Kutubu rainbowfish: can they live together? Verdict: With cautionTheir temperature ranges only just meet, at 24°C (75°F).A pH of 7.0 suits both.Minimum tank for the pair: 210 L (55 US gal)Side by sideClown rasboraLake Kutubu rainbowfishAdult size9 cm (3.5 in)10 cm (3.9 in)Minimum tank110 L (29 US gal)210 L (55 US gal)Temperature24–29°C (75–84°F)20–24°C (68–75°F)pH5.5–7.07.0–8.0Hardness2–10 dGH (36–178 ppm)9–12 dGH (161–214 ppm)TemperamentPeacefulPeacefulCommunity tankGoodGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesClown rasboraRasbora kalochromaLake Kutubu rainbowfishMelanotaenia lacustris