HomeCompare fishPearl danio vs Coppernose barb Pearl danio vs Coppernose barb: can they live together? Verdict: Not recommendedThe Coppernose barb is aggressive towards other fish.An adult Coppernose barb is about 4 times the length of a Pearl danio and may eat it.Both are comfortable at 22–25°C (72–77°F).A pH of 6.5–7.0 suits both.Side by sidePearl danioCoppernose barbAdult size5 cm (2 in)17.5 cm (6.9 in)Minimum tank75 L (20 US gal)115 L (30 US gal)Temperature20–25°C (68–77°F)22–26°C (72–79°F)pH6.0–8.06.5–7.0Hardness5–19 dGH (89–339 ppm)5–10 dGH (89–178 ppm)TemperamentPeacefulAggressiveCommunity tankExcellentWith cautionCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesPearl danioDanio albolineatusCoppernose barbRaiamas christyi