Help please

[Pred24]

Hi what’s upsetting my candy cane coral?

 

[SPR1968]

I think we maybe need a better picture because it’s difficult to tell whats happening there.

I can see some things that look slightly like vermetid snails but they could be anything.

Also a full set of water parameters would help

 

[Pred24]

Are these ok? Perimeters are all good had an ammonia spike as had a power cut over night a few months ago but all’s good now.