I used to have one - intially he was timid and only came out at night - after a while he was fine and became one of the gang. These fish are pretty cool - they can swim backwards and use their nose (actually a chin not a nose) to sift for food in the sand. They are not just bottom dwellers though.
I saw one of these at a public aquarium he was 6" long and out swimming around I will have to look for the photo. But it seems like they are more and mode rare these days. Might want try the oddball section.