receding australomussa

[BHFP]

Hoping that someone here has some experience with saving australomussa corals.

I've had this guy for about 6 weeks in my 20gal AIO long tank and have maintained stable water parameters.

When I introduced it to the tank, I found a nice spot with low flow and med/low light, as pictured here:

A few weeks later...

After noticing the recession, I lifted it up and put it on a rock though it's hard to tell if it's doing better. Being newer to the hobby I realize I won't see improvement "overnight" but was looking for some insight as to if things are back on the right track. It's feeding well fortunately but it absolutely doesn't look healthy.

This was taken about a week ago.

A few days ago, I noticed an aiptasia growing on the underside which certainly isn't helping anything and added 2 nudibranch last week hoping that they'll take care of the pesky aiptasia.

Questions:
1) is this recoverable? unsure if this is bacterial or a different issue given it was on the sand bed.
2) would a peroxide dip be ill advised given the stressed condition?
3) should I just let it ride?

I love this piece and it's a showpiece so really hopeful I can nurse it back to health.

Thanks!

 

[thamnasteroid]

Parameters?

Also, that's a Lobophyllia vitiensis, and Australomussa were reclassified to Lobophyllia rowleyensis in ~2014.

 

[BHFP]

Awesome thank you! I had no idea.

I was overdue for water change when I took these last values.

 

[thamnasteroid]

Magnesium, calcium, and phosphates (if I'm reading that correctly) are too high. Magnesium should be 1200-1400 ppm, calcium should be 400-500 ppm, and Phosphates should be .03-.09 ppm.

 

[TeamAquaSD Verified Sponsor]

Awesome thank you! I had no idea.

I was overdue for water change when I took these last values.

Mag and cal are fine. Phos is too high though. Definetly throw some reef roids its way and some amino acids if not already

 

[Uncle99]

Super sensitive coral, any damage whatsoever and they slowly recede. Same with scoly and Tracs.

 

[BHFP]

Mag and cal are fine. Phos is too high though. Definetly throw some reef roids its way and some amino acids if not already

Thanks I’ll pick some up when I’m at TSA next

 

[BHFP]

Magnesium, calcium, and phosphates (if I'm reading that correctly) are too high. Magnesium should be 1200-1400 ppm, calcium should be 400-500 ppm, and Phosphates should be .03-.09 ppm.

I did a 75% water change bc of an issue I had with ATO not disengaging during my last WC