I also recently picked up a dragonscale crowntail from Petsmart who im pretty sure isnt a dragonscale. He faintly shines in the sun but definitely nowhere near as much of a dragonscale as all the others i saw at the store. He's also more likely more of a marbled/grizzled type. But I just adored his colors :D Thats still pretty unique colors to find on a crowntail, congrats on finding him!
My "Dragonscale", Krahyolviing