Acanthophyllia mouth gaping

[Klag]

Hello all,

I made a post a few days ago about my acanthophyllia showing some skeleton and it has gotten worse. Any advice is appreciated, the better looking picture is from 2 days ago and the worse one is just recently.

Parameters:
Nitrate: 10 PPM
Phosphate: 0.06 PPM
Alk: 7.8
Salinity: 1.024
Temp: ~78

 

[Tahoe61]

I suspect water chemistry when ever you see tissue recession in LPS. Are you testing calcium and magnesium levels? Have you preformed any recent water changes? If not that's where I would start.

 

[VintageReefer]

I have not figured it out but these guys seem to just “get sick” sometimes for unknown reasons. Mine recently showed 1 skeletal bone through the flesh despite regular feedings and good parameters. An lps dominant tank and this guy was fine every day for months then a random skeleton bone.

Now it’s inflated like normal but bleached all its color

Feeder tentacles come out at night, I fed twice a week. Par is <100 in this spot. Around 80

 

[VintageReefer]

I’ve lost 3 Other acantho’s I don’t get it. Similar care level / requirement corals like Cynarina, scolymia, lobos all do great in my system. Only acantho have issues for me.

I thought it might be bristleworms so I got a stand to keep the new one out of the sand but I’m still having issues.