HomeCompare fishBrilliant rasbora vs Red rainbowfish Brilliant rasbora vs Red rainbowfish: can they live together? Verdict: With cautionTheir preferred pH ranges don't overlap.Both are comfortable at 22–25°C (72–77°F).Minimum tank for the pair: 150 L (40 US gal)Side by sideBrilliant rasboraRed rainbowfishAdult size9 cm (3.5 in)12 cm (4.7 in)Minimum tank110 L (29 US gal)150 L (40 US gal)Temperature22–26°C (72–79°F)22–25°C (72–77°F)pH6.0–6.57.0–8.0Hardness–9–19 dGH (161–339 ppm)TemperamentPeacefulPeacefulCommunity tankGoodGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesBrilliant rasboraRasbora einthoveniiRed rainbowfishGlossolepis incisus