HomeCompare fishStriped barb vs Blackline rasbora Striped barb vs Blackline rasbora: can they live together? Verdict: With cautionThe Striped barb grows about twice as long as the Blackline rasbora; watch for bullying or predation.Both are comfortable at 23–26°C (73–79°F).A pH of 6.5 suits both.Minimum tank for the pair: 210 L (55 US gal)Side by sideStriped barbBlackline rasboraAdult size12 cm (4.7 in)5 cm (2 in)Minimum tank210 L (55 US gal)115 L (30 US gal)Temperature23–26°C (73–79°F)22–26°C (72–79°F)pH6.0–6.56.5–7.0Hardness2–12 dGH (36–214 ppm)5–12 dGH (89–214 ppm)TemperamentPeacefulPeacefulCommunity tankExcellentExcellentCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesStriped barbPuntius johorensisBlackline rasboraRasbora borapetensis