Small black dots on SPS frag?

[TwiTch18]

I just got home from a trip and noticed some small black dots on a little frag I have. Does anyone recognize these? My first thought is a flatworm or something but I can hardly see them.

I took it out and dipped it as soon as I saw it, but I'm considering if I should dip the rest of my frags. I always do it once upon arrival but some must have survived the first round. I didn't notice any visible dots on my other corals. I'll have to keep a closer eye on them over the next while.

Any help is greatly appreciated.

Cheers.

 

[Alex Cataldo]

Cut off some of the live coral base and completely remove and discard the base. Quarantine and check it again, as it looks like you may have Acro eating flatworms