Creamscicle acro developing spots overnight

[jordanrb]

My creamscicle acro developed patches that looks like tissue is gone overnight. I have a picture from yesterday during feeding with the flow off. There is nothing visible at all. I noticed today during a feeding there are spots. My spiny sea urchin was on the acro when I noticed. I pulled him off and found more. Could this be RTN or damage from the urchin?

 

[Mr. Mojo Rising]

It looks like blue coloration in the picture, can you take another pic with the blue's turned off and leave only the whites on? That way we can really see it, thanks.

 

[jordanrb]

It looks like blue coloration in the picture, can you take another pic with the blue's turned off and leave only the whites on? That way we can really see it, thanks.

I cant take good pics with my phone. It definitely is missing tissue. But random spots