HomeCompare fishClown rasbora vs Blackline rasbora Clown rasbora vs Blackline rasbora: can they live together? Verdict: CompatibleBoth are comfortable at 24–26°C (75–79°F).A pH of 6.5–7.0 suits both.Minimum tank for the pair: 115 L (30 US gal)Side by sideClown rasboraBlackline rasboraAdult size9 cm (3.5 in)5 cm (2 in)Minimum tank110 L (29 US gal)115 L (30 US gal)Temperature24–29°C (75–84°F)22–26°C (72–79°F)pH5.5–7.06.5–7.0Hardness2–10 dGH (36–178 ppm)5–12 dGH (89–214 ppm)TemperamentPeacefulPeacefulCommunity tankGoodExcellentCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesClown rasboraRasbora kalochromaBlackline rasboraRasbora borapetensis