Acanthophyllia irritated?

[jaywhit]

My acanthophyllia lately has one side "pinched" up when expanded, and I noticed this red spiked growth attached to the skeleton when contracted. Could this be causing the irritation, and what is it?

 

[Tweaked]

These should really be deeper in the sand to keep the lobes from drooping across their internal spiked skeleton which leads to a puncture and what you are describing. I was always unable to reverse a puncture wound and ultimately lost them each time. GL

 

[organism]

+1, also I don't like the look of the flesh receding from the base since that looks pretty recent. Is your alkalinity good?

 

[jaywhit]

Alkalinity is 9. All other parameters are good and stable. Actually it had a puncture wound when I bought it,(didn't see it) but was able to recover. It's grown 2x its size in 9 months. Thanks, will settle it deeper into the sand bed to see if it helps

 

[jaywhit]

 

[jaywhit]

I've settled him in the substrate and seems to be doing better already

 

[jaywhit]

 

[Tweaked]

tadaaa! A frag will be fine