HomeCompare fishDwarf rasbora vs Coppernose barb Dwarf rasbora vs Coppernose barb: can they live together? Verdict: Not recommendedThe Coppernose barb is aggressive towards other fish.An adult Dwarf rasbora is about 3 times the length of a Coppernose barb and may eat it.Their preferred pH ranges don't overlap.Both are comfortable at 23–26°C (73–79°F).Side by sideDwarf rasboraCoppernose barbAdult size54 cm (21 in)17.5 cm (6.9 in)Minimum tank40 L (11 US gal)115 L (30 US gal)Temperature23–27°C (73–81°F)22–26°C (72–79°F)pH5.0–6.06.5–7.0Hardness5–12 dGH (89–214 ppm)5–10 dGH (89–178 ppm)TemperamentPeacefulAggressiveCommunity tankGoodWith cautionCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesDwarf rasboraBoraras maculatusCoppernose barbRaiamas christyi