HomeCompare fishBlack ghost vs Lesser spiny eel Black ghost vs Lesser spiny eel: can they live together? Verdict: Not recommendedThe Lesser spiny eel is aggressive towards other fish.The Black ghost is aggressive towards other fish.Both are comfortable at 23–28°C (73–82°F).A pH of 6.5–7.5 suits both.Side by sideBlack ghostLesser spiny eelAdult size50 cm (20 in)38 cm (15 in)Minimum tank210 L (55 US gal)115 L (30 US gal)Temperature23–28°C (73–82°F)20–28°C (68–82°F)pH6.0–8.06.5–7.5Hardness5–10 dGH (89–178 ppm)6–35 dGH (107–625 ppm)TemperamentAggressiveAggressiveCommunity tankGoodGoodCare levelModerateEasyDietOmnivoreOmnivoreSpecies profilesBlack ghostApteronotus albifronsLesser spiny eelMacrognathus aculeatus