HomeCompare fishBleeding-heart tetra vs Black sharkminnow Bleeding-heart tetra vs Black sharkminnow: can they live together? Verdict: Not recommendedAn adult Black sharkminnow is about 15 times the length of a Bleeding-heart tetra and may eat it.Both are comfortable at 24–27°C (75–81°F).A pH of 6.5–7.2 suits both.Side by sideBleeding-heart tetraBlack sharkminnowAdult size6 cm (2.4 in)90 cm (35 in)Minimum tank75 L (20 US gal)475 L (125 US gal)Temperature23–28°C (73–82°F)24–27°C (75–81°F)pH5.6–7.26.5–7.5Hardness3–12 dGH (54–214 ppm)2–15 dGH (36–268 ppm)TemperamentPeacefulPeacefulCommunity tankGoodGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesBleeding-heart tetraHyphessobrycon erythrostigmaBlack sharkminnowLabeo chrysophekadion