Link is pretty weak, try fishbase in a pinch. First the common name of snowflake refers to G. tile. Also the pic is G. tile, not polyuranodon. This is what gets sold as a freshwater moray but is really a brackish moray at best.Gahandi;4541511; said:not to be an a-hole here, but just because it can survive in freshwater, doesn't make it true freshwater eel. I thought those kinds off eel required brackish water normally?
http://fishprofiles.com/profiles/freshwater/OthersFW/Gymnothorax_polyuranodon/
G. polyuranodon is a true freshwater moray and lives in freshwater in the wild. All the specimens in captivity here were caught in full fresh, yes it may occur in brackish or marine conditions but so do JP and barramundi, doesn't make them any less of a freshwater fish. Random websites are not the final word, I will trust what I have seen and what the people studying them tell me.
As for swamp eels, great alternative to long or short fin eels. We have at least two species, Monopterus albus and Ophisternon gutterale, but there are probably other sp here that get mis-identified as the two common species.