HomeCompare fishBrilliant rasbora vs Black ghost Brilliant rasbora vs Black ghost: can they live together? Verdict: Not recommendedThe Black ghost is aggressive towards other fish.An adult Black ghost is about 6 times the length of a Brilliant rasbora and may eat it.Both are comfortable at 23–26°C (73–79°F).A pH of 6.0–6.5 suits both.Side by sideBrilliant rasboraBlack ghostAdult size9 cm (3.5 in)50 cm (20 in)Minimum tank110 L (29 US gal)210 L (55 US gal)Temperature22–26°C (72–79°F)23–28°C (73–82°F)pH6.0–6.56.0–8.0Hardness–5–10 dGH (89–178 ppm)TemperamentPeacefulAggressiveCommunity tankGoodGoodCare levelEasyModerateDietOmnivoreOmnivoreSpecies profilesBrilliant rasboraRasbora einthoveniiBlack ghostApteronotus albifrons