What is this?

[Mykesocalreef]

I noticed some zoas that were partially closed, upon closer inspection I’ve found something on the side.. no clue what it is, if anything. Anyone have any ideas?

 

[kirstyflash]

Could it be a bivalve?

 

[Joshua Cavazos]

I’d take the frag and dip it. If it’s a type of pest it may fall right off. If you are referring to the part that seems to be sticking out at the base of the colony I’m not 100% positive what it is. Maybe a quick Frag/cut to that portion may do the trick followed by a revive dip? The pictures don’t show a clear indication of what may be the culprit but maybe what I’ve suggested may get you closer to an answer! Good Luck

 

[Mykesocalreef]

The part I’m referring to is right around the rim of the zoa.

 

[Mykesocalreef]

 

[TheArsalan]

I agree, try dipping it. hard to tell in pics but might be very tiny nudi's that love Zoas. They also cause Zoas to close up.
Also, see if you can wipe it off with a small blade or something.

 

[Joshua Cavazos]

Honestly the picture is super blurry... I see a few white spots? If so then possibly zoapox?

 

[Jayh86]

Is this zoapox

 

[HCl+NaHO=]

Is this zoapox

That is zoapox

If the OP could take pics under whites we might be able to see his zoas to diagnose them.

 

[Jayh86]

That is zoapox

If the OP could take pics under whites we might be able to see his zoas to diagnose them.

What’s best treatment please. Or will it clear?