HomeCompare fishBlackline rasbora vs Dwarf rasbora Blackline rasbora vs Dwarf rasbora: can they live together? Verdict: Not recommendedAn adult Dwarf rasbora is about 11 times the length of a Blackline rasbora and may eat it.Their preferred pH ranges don't overlap.Both are comfortable at 23–26°C (73–79°F).Side by sideBlackline rasboraDwarf rasboraAdult size5 cm (2 in)54 cm (21 in)Minimum tank115 L (30 US gal)40 L (11 US gal)Temperature22–26°C (72–79°F)23–27°C (73–81°F)pH6.5–7.05.0–6.0Hardness5–12 dGH (89–214 ppm)5–12 dGH (89–214 ppm)TemperamentPeacefulPeacefulCommunity tankExcellentGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesBlackline rasboraRasbora borapetensisDwarf rasboraBoraras maculatus