Does anyone have any info on these catfish, if they get along in a commun tank, what they eat, and if they are completely freshwater, or info at all, there's really not that much online, thanks
http://fishbase.sinica.edu.tw/Summary/SpeciesSummary.php?id=24590 -- From this sounds like Nemapteryx armiger need at least brackish, never fresh: "Inhabits coastal waters and estuaries, river deltas and rivers within tidal influence. Feeds mainly on prawns and other crustaceans, fish, aquatic insects, plant material, and fish scales taken opportunistically..."
You are right. There is exceedingly little info on them out there...