Something bothering my montipora

[Merv49]

Does anyone have any idea what’s happening to my montipora?

 

[tdileo]

Any new coral additions lately, possibility of any alk or pH spikes?

 

[Merv49]

Added a couple acro’s a few days ago. No ph or all spikes. All my corals dipped before adding.

 

[HB AL]

Try and look at the underside for a possible pest.