HomeCompare fishRed rainbowfish vs Kamaka rainbowfish Red rainbowfish vs Kamaka rainbowfish: can they live together? Verdict: With cautionTheir temperature ranges only just meet, at 22°C (72°F).A pH of 7.0–7.2 suits both.Minimum tank for the pair: 210 L (55 US gal)Side by sideRed rainbowfishKamaka rainbowfishAdult size12 cm (4.7 in)14 cm (5.5 in)Minimum tank150 L (40 US gal)210 L (55 US gal)Temperature22–25°C (72–77°F)18–22°C (64–72°F)pH7.0–8.06.5–7.2Hardness9–19 dGH (161–339 ppm)–TemperamentPeacefulPeacefulCommunity tankGoodWith cautionCare levelEasyDifficultDietOmnivoreOmnivoreSpecies profilesRed rainbowfishGlossolepis incisusKamaka rainbowfishMelanotaenia kamaka