HomeCompare fishDwarf rainbowfish vs Eel Loach Dwarf rainbowfish vs Eel Loach: can they live together? Verdict: Not recommendedAn adult Eel Loach is about 38 times the length of a Dwarf rainbowfish and may eat it.Their preferred pH ranges don't overlap.Both are comfortable at 24–26°C (75–79°F).Side by sideDwarf rainbowfishEel LoachAdult size5 cm (2 in)190.5 cm (75 in)Minimum tank150 L (40 US gal)75 L (20 US gal)Temperature22–28°C (72–82°F)24–26°C (75–79°F)pH6.5–7.55.0–6.0Hardness8–18 dGH (143–321 ppm)5–12 dGH (89–214 ppm)TemperamentPeacefulPeacefulCommunity tankGoodGoodCare levelEasyEasyDietOmnivoreCarnivoreSpecies profilesDwarf rainbowfishMelanotaenia praecoxEel LoachPangio anguillaris