HomeCompare fishBrilliant rasbora vs Blackline rasbora Brilliant rasbora vs Blackline rasbora: 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: 115 L (30 US gal)Side by sideBrilliant rasboraBlackline rasboraAdult size9 cm (3.5 in)5 cm (2 in)Minimum tank110 L (29 US gal)115 L (30 US gal)Temperature22–26°C (72–79°F)22–26°C (72–79°F)pH6.0–6.56.5–7.0Hardness–5–12 dGH (89–214 ppm)TemperamentPeacefulPeacefulCommunity tankGoodExcellentCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesBrilliant rasboraRasbora einthoveniiBlackline rasboraRasbora borapetensis