clownfish trouble

Can velvet or brooklynella stay dormant in a clownfish for 4 weeks without appearing? I think my clownfish I have had for almost a month is starting to exhibit symptoms of brooklynella.

NEED HELP So I’m new to the salty side ( I have 5 freshwater aquariums) So my grandma decided to give me her old 29 gallon bowfront tank and stand. I decided I’d set it up and do my first saltwater tank. I properly cycled the tank (requires way more patience than freshwater lol) and added two...