Is this a pinched mantle?

[60squared]

Bought two maxima clams yesterday having lost two to pinched mantle a good while back I'm hoping this isn't the same thing? What do you think?

 

[60squared]

This is his brother

 

[60squared]

Please help me

 

[kacrocorals581]

https://www.reef2reef.com/forums/clams/98140-pinched-mantle-disease-id-treatment-options.html although I'm not much on clams I did find this maybe skinz78 well chime in

 

[60squared]

Thanks I just started running carbon

 

[Sangheili]

Keep a close eye on it, PM starts out looking like this. It may just be stress however.

 

[60squared]

I think it could be because as the day has went on its flattened out started running carbon to be on the safe side