That sounds good, it's great that he's active! Generally they get irritated and like to scratch on everything.
at the dose of 3 teaspoons per gallon you can go up to 10 days but no more.
And for a side reference, here is one of my girls, Matisse when she had velvet:
Ignore the white dots, they're just bubbles after I did my 100% daily change on her, but you can see the gold dusting, granted she's a darker fish which makes it easier to see but if you see that on your boy then it's velvet, if it's not raised and looked like sprinkled with golden sugar then it's not velvet.