Brand new to this group, but have been lurking here for awhile now. Regarding my Bala Shark, I picked out the largest and nicest looking juvenile at my LFS several months ago. Upon purchase, it had one very shiny...mirror like scale on it's side, high up near the dorsal fin. The manager of the store said it would disappear when he grew. He's growing quite rapidly for a Bala, and seems very healthy...but still has this one 'super' shiny scale that glimmers, or twinkles when turning, reflecting the light. Does anyone know what this is that I am describing? My first thought was a missing scale, but I'm sure if anything, it would be dull in appearance, not brighter than the rest of the scales. Any info is appreciated, thanks in advance.