HomeCompare fishLake Kutubu rainbowfish vs Chinese sucker Lake Kutubu rainbowfish vs Chinese sucker: can they live together? Verdict: Not recommendedAn adult Chinese sucker is about 6 times the length of a Lake Kutubu rainbowfish and may eat it.Both are comfortable at 20–24°C (68–75°F).A pH of 7.0–7.5 suits both.Side by sideLake Kutubu rainbowfishChinese suckerAdult size10 cm (3.9 in)60 cm (24 in)Minimum tank210 L (55 US gal)455 L (120 US gal)Temperature20–24°C (68–75°F)18–28°C (64–82°F)pH7.0–8.06.0–7.5Hardness9–12 dGH (161–214 ppm)–TemperamentPeacefulPeacefulCommunity tankGoodGoodCare levelEasyModerateDietOmnivoreOmnivoreSpecies profilesLake Kutubu rainbowfishMelanotaenia lacustrisChinese suckerMyxocyprinus asiaticus