White patch on acro

[Sshannon]

I've noticed this rainbow rose frag has not had hood polyp extension at all since I bought it months ago. I see these patches where there is less brown pigment, but still healthy living tissue, no bite marks. Am I crazy? Is this just a break in period? Or is there something....more sinister in my reef?

 

[Hendrix]

Hard to see...

What are your water parameters?

 

[Sshannon]

Sal 1.025
Nitrate:10
Alk: 10
Calc:420
Mag: na
I have full polyp extension on other acros in the tank, fwiw

 

[i_am_mclovin]

Kinda looks like mesentarial filament

 

[C. Eymann]

That's a mesentarial filament, basically part of it's digestive system, Sometimes it's a response to localized stress or trauma, but can also be extruded to digest food items outside the gastric cavity.

 

[Sshannon]

I see the mesenterial filament now. However, I'm actually more worried about the faded white patches in the brown tissue. to the upper left of the filament.