Um, lemme gi look, just woke up....
..............
Well, there's no new ones. I'm not sure if he scraped actual scales off or just their pigment. Not sure how a betta's scales are 'built', especially since 'dragonscale' is a mutation.
I would imagine normal scales have layers of strong scale, then a layer of pigment then a clear scale ontop. But then agsin the pigment could be on the actual skin, and not in the scale at all.