HomeCompare fishRed rainbowfish vs Bluespotted corydoras Red rainbowfish vs Bluespotted corydoras: can they live together? Verdict: With cautionThe Red rainbowfish grows about twice as long as the Bluespotted corydoras; watch for bullying or predation.Both are comfortable at 22–25°C (72–77°F).A pH of 7.0–8.0 suits both.Minimum tank for the pair: 150 L (40 US gal)Side by sideRed rainbowfishBluespotted corydorasAdult size12 cm (4.7 in)5.7 cm (2.2 in)Minimum tank150 L (40 US gal)–Temperature22–25°C (72–77°F)22–26°C (72–79°F)pH7.0–8.06.0–8.0Hardness9–19 dGH (161–339 ppm)2–25 dGH (36–446 ppm)TemperamentPeacefulPeacefulCommunity tankGoodGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesRed rainbowfishGlossolepis incisusBluespotted corydorasCorydoras melanistius