HomeCompare fishBlack ghost vs Mosquitofish Black ghost vs Mosquitofish: can they live together? Verdict: Not recommendedThe Mosquitofish can be semi-aggressive or nip fins.The Black ghost is aggressive towards other fish.An adult Black ghost is about 12 times the length of a Mosquitofish and may eat it.Both are comfortable at 23–28°C (73–82°F).A pH of 6.0–8.0 suits both.Side by sideBlack ghostMosquitofishAdult size50 cm (20 in)4 cm (1.6 in)Minimum tank210 L (55 US gal)40 L (11 US gal)Temperature23–28°C (73–82°F)12–29°C (54–84°F)pH6.0–8.06.0–8.0Hardness5–10 dGH (89–178 ppm)5–19 dGH (89–339 ppm)TemperamentAggressiveSemi-aggressiveCommunity tankGoodGoodCare levelModerateEasyDietOmnivoreOmnivoreSpecies profilesBlack ghostApteronotus albifronsMosquitofishGambusia affinis