If the fish in the link Locust posted looks like your fish, I can help a bit.
I kept a pair for a couple of years. They were aggressive, territorial loaches that I had to keep with equally aggressive bottom dwellers or the chase was on and somebody got beat up. I kept them with botia modesta which were much larger and wouldn't back down. They didn't seem to bother the upper level fish unless they tried to horn in on the wafers.
They are pretty fish, when you can see them, and move like greased lightning. They like temps in the 78-ish range, soft water rather than hard, but not really fussy, and very clean water with low DOC. They REALLY like current and the addition of a powerhead will bring them out. Like most botia, the pair I had was inseparable. If you only got one, you may get some increased aggression.
I haven't seen any in my area since my pair succumbed to some weird illness and I lost them both.