Really doubt it. They're from clear South American streams. REALLY wouldn't try it... Not a wise idea with non-brackish species, probably even worse with species that doesn't have scales.
I have two. Though if you look them up on Fishbase.org, you probably won't find them... I think they're actually called Gangetic Loaches (Botia rostrata).
I add aquarium salt for stress relief, but that's a very small amount-1 tablespoon per 10 gallons.