HomeCompare fishBlack sharkminnow vs Redeye labeo Black sharkminnow vs Redeye labeo: can they live together? Verdict: With cautionThe Black sharkminnow grows about twice as long as the Redeye labeo; watch for bullying or predation.Their preferred pH ranges don't overlap.Both are comfortable at 24–27°C (75–81°F).Minimum tank for the pair: 475 L (125 US gal)Side by sideBlack sharkminnowRedeye labeoAdult size90 cm (35 in)40 cm (16 in)Minimum tank475 L (125 US gal)475 L (125 US gal)Temperature24–27°C (75–81°F)24–28°C (75–82°F)pH6.5–7.55.0–6.0Hardness2–15 dGH (36–268 ppm)5–12 dGH (89–214 ppm)TemperamentPeacefulPeacefulCommunity tankGood–Care levelEasyEasyDietOmnivoreOmnivoreSpecies profilesBlack sharkminnowLabeo chrysophekadionRedeye labeoLabeo cylindricus