HomeCompare fishRed rainbowfish vs Clown barb Red rainbowfish vs Clown barb: can they live together? Verdict: CompatibleBoth are comfortable at 24–25°C (75–77°F).A pH of 7.0 suits both.Minimum tank for the pair: 150 L (40 US gal)Side by sideRed rainbowfishClown barbAdult size12 cm (4.7 in)14 cm (5.5 in)Minimum tank150 L (40 US gal)75 L (20 US gal)Temperature22–25°C (72–77°F)24–28°C (75–82°F)pH7.0–8.06.0–7.0Hardness9–19 dGH (161–339 ppm)7–17 dGH (125–303 ppm)TemperamentPeacefulPeacefulCommunity tankGoodGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesRed rainbowfishGlossolepis incisusClown barbPuntius everetti