HomeCompare fishArulius barb vs Coppernose barb Arulius barb vs Coppernose barb: can they live together? Verdict: Not recommendedThe Coppernose barb is aggressive towards other fish.Both are comfortable at 22–25°C (72–77°F).A pH of 6.5–7.0 suits both.Side by sideArulius barbCoppernose barbAdult size12 cm (4.7 in)17.5 cm (6.9 in)Minimum tank210 L (55 US gal)115 L (30 US gal)Temperature19–25°C (66–77°F)22–26°C (72–79°F)pH6.0–8.06.5–7.0Hardness2–10 dGH (36–178 ppm)5–10 dGH (89–178 ppm)TemperamentPeacefulAggressiveCommunity tankGoodWith cautionCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesArulius barbPuntius aruliusCoppernose barbRaiamas christyi