ID on SPS Pest

[MillerReef]

I've had my tank up for about 2 years now and never had a problem with pests. But I think I might have one now. A couple months ago an acro that was thriving started to STN. I fragged some pieces once it was spreading. Now the frags have STN as well and I see what looks like little tiny bugs moving on it.


Please help me ID the pests on the back frag. They are really small so zoom in. And also any options for treatment.

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[markalot]

Are they red bugs (yellowish with a red dot)?

Have you checked params to make sure nothing happened, like an Alk swing? Dying coral will bring out all kinds of bugs.

 

[Piper27]

Looks like Pods on the dead skeleton but I don't see anything on the living flesh. Could be that the coral just got stressed and started tissue necrosis. If you see anything on the flesh of other corals take a picture. The Pods will cover dead skeleton to eat the rotting and dead flesh. You should be looking for small red bugs, circle bite marks from aefw or black bugs first on acropora. Nudis and spiders also have been seen affecting acropora.

 

[chrisv]

That frag is probably toast, you could take it and put it in an iodine dip and see what falls off. Smooth acros like that are a favorite of AEFW. I woudn't be surprised to see them, though this looks like more of a large scale crash than predation.