Tang with black spots?

[Spongebobsquarepants]

Today when i went to feed my fish i seen that my yellow tang has tiny black spots on him like the size of a gran of pepper what looks like.I tryed to get pics of him but cant see it no matter what i tryed.I never seen this before.So tested water all good. Hes eating Great and all the other fish are fine! Just wander if one those tang Defence things lights only been on for hour and i know tangs can kind color change at night. Any idea?s And black spots only on his body not his fins.

[Kevin1000]

Might be black ich ... if so this link will help.

http://www.petsforum.com/personal/tr.../blackich.html

As I recall this link also has a pretty good pic of a yellow tank with black ich.

[Spongebobsquarepants]

cool thanks for the info did not know there was black ick .

[tdwyatt]

Actually a parasite, freshwater dip is the cure.

[Spongebobsquarepants]

i did about 2 min fresh water dip it pissed him off but hes ok tho