was at a LFS yesterday and they had some beautiful fish, maybe 5" long or so. they were silver w/ a little bit of a red hue on their fins, and they had a real shiny body with "spots" that reflected kind of like a giant danio would. they were labled as "arrow sharks". i asked about them and the guy said they are peaceful (similar to bala sharks) and they reach 10". they were $9.99 each. i was tempted to get them but i'm pretty much fully stocked. plus they only had two and the guy said they do best in groups of 3 or 4. i also wanted to know more about them, so when i got home i googled "arrow shark" and i couldn't find anything about them. i finally found out they are called "Labiobarbus Festivus" and are often called "Signal Barbs". However, searching for any of these (arrow shark, signal barb, labiobarbus festivus) get me pretty much no results in regards to where they come from, their behavior, etc. i'm interested in them! the pictures don't do them justice. they were BEAUTIFUL in the store. has anyone ever seen or heard of these? or know anything about them?