HomeCompare fishClown rasbora vs Black ghost Clown 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 Clown rasbora and may eat it.Both are comfortable at 24–28°C (75–82°F).A pH of 6.0–7.0 suits both.Side by sideClown rasboraBlack ghostAdult size9 cm (3.5 in)50 cm (20 in)Minimum tank110 L (29 US gal)210 L (55 US gal)Temperature24–29°C (75–84°F)23–28°C (73–82°F)pH5.5–7.06.0–8.0Hardness2–10 dGH (36–178 ppm)5–10 dGH (89–178 ppm)TemperamentPeacefulAggressiveCommunity tankGoodGoodCare levelEasyModerateDietOmnivoreOmnivoreSpecies profilesClown rasboraRasbora kalochromaBlack ghostApteronotus albifrons