HomeCompare fishClown barb vs Black ghost Clown barb vs Black ghost: can they live together? Verdict: Not recommendedThe Black ghost is aggressive towards other fish.An adult Black ghost is about 4 times the length of a Clown barb 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 barbBlack ghostAdult size14 cm (5.5 in)50 cm (20 in)Minimum tank75 L (20 US gal)210 L (55 US gal)Temperature24–28°C (75–82°F)23–28°C (73–82°F)pH6.0–7.06.0–8.0Hardness7–17 dGH (125–303 ppm)5–10 dGH (89–178 ppm)TemperamentPeacefulAggressiveCommunity tankGoodGoodCare levelEasyModerateDietOmnivoreOmnivoreSpecies profilesClown barbPuntius everettiBlack ghostApteronotus albifrons