HomeCompare fishDwarf rainbowfish vs Bluespotted corydoras Dwarf rainbowfish vs Bluespotted corydoras: can they live together? Verdict: CompatibleBoth are comfortable at 22–26°C (72–79°F).A pH of 6.5–7.5 suits both.Minimum tank for the pair: 150 L (40 US gal)Side by sideDwarf rainbowfishBluespotted corydorasAdult size5 cm (2 in)5.7 cm (2.2 in)Minimum tank150 L (40 US gal)–Temperature22–28°C (72–82°F)22–26°C (72–79°F)pH6.5–7.56.0–8.0Hardness8–18 dGH (143–321 ppm)2–25 dGH (36–446 ppm)TemperamentPeacefulPeacefulCommunity tankGoodGoodCare levelEasyEasyDietOmnivoreOmnivoreSpecies profilesDwarf rainbowfishMelanotaenia praecoxBluespotted corydorasCorydoras melanistius