NEED HELP!!! Black dots.

[barracuda]

Hello, help me to identify the parasites.
My yellow tang has a lot of tiny black dots all over the body. The breathe is normal. Fish seems to be eating very well. Not hiding.
Thanks.

 

[beth]

Black spot disease, sometimes called, black ick, is caused by flatworms. The adult worm attaches to a host for about six days, falls off into the substrate, then in about five days the adult body ruptures releasing a new population of young worms and the cycle begins again. It normally doesn’t show up in larger numbers as with other forms of Ich and is not nearly as dangerous. It is a disease that is associated more with yellow tangs, but that is because the black dots are much easier to detect on the solid light colored fish then on other types of fish.
Black Spot Disease appears on the fins and body of fish as tiny black dots—about the size of pinheads. Like regular ick, the fish will scratch up against objects in the aquarium and the fish might also have reddened skin, lethargy, color loss and rapid breathing.
You can treat this with FW dips and formalin baths.