Can ICK deveolpe overnight

[Basterb]

I'm trying to determine if my new Flame Angle has ick or if it's just micro bubbles/sand

I got him last night and he looked great. But his morning I noticed he is covered in white specs. All the other fish are doing great.

There are a lot of specs, so I’m leaning towards bubbles, maybe since the angle is hanging out at the bottom of the sand hiding and not moving around much. I'll have to fix the bubble problem, which really isn't that bad.

I'm not sure how fast ICK can start and spread. IF you tell me it starts with 2 or 3 spots then keeps growing then I’ll be feeling better. I’ll see if I can get a pic.