HomeCompare fishBrilliant rasbora vs Dwarf rainbowfish Brilliant rasbora vs Dwarf rainbowfish: can they live together? Verdict: CompatibleBoth are comfortable at 22–26°C (72–79°F).A pH of 6.5 suits both.Minimum tank for the pair: 150 L (40 US gal)Side by sideBrilliant rasboraDwarf rainbowfishAdult size9 cm (3.5 in)5 cm (2 in)Minimum tank110 L (29 US gal)150 L (40 US gal)Temperature22–26°C (72–79°F)22–28°C (72–82°F)pH6.0–6.56.5–7.5Hardness–8–18 dGH (143–321 ppm)TemperamentPeacefulPeacefulCommunity tankGoodGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesBrilliant rasboraRasbora einthoveniiDwarf rainbowfishMelanotaenia praecox