Need help saving frogspawn

[Pau Hana Reefer]

I'm losing the battle with this frogspawn and hoping R2R can help me save it.

This started a few weeks ago, when I noticed that the skeleton was becoming exposed at one end of the coral. I measured the water and nothing was out of line. The exposed skeleton started turning green a couple days later, which doesn't blow or scrub off. I tried a number of things to see if I could make it happy again... moved it around the tank, lowered the water flow, water changes, etc. The remain polyps have not been fully extended.

Over the couple of days, it suddenly took a turn for the worse. It started to lose a noticeable amount of polyps each day and the green stuff is expanding on the exposed skeleton.

I gave it a dip in Coral RX earlier today. The only things that fell off were spirorbid worms (along with a few polyps).

Water parameters:
Salinity - 1.025
pH - 8.2
Calcium - 480
Alk - 8.064
Phosphate - trace
Nitrate - trace
No ammonia or nitrite

Anyone able to help? Thanks in advance.

The polyps first started dropping from the right side of the coral. The green stuff has been spreading.

Getting dipped in Coral RX earlier today.

 

[Evan28395950]

Following, as I have had this problem, unfortunately they all bailed out for me, hope yours makes it.

 

[vetteguy53081]

Parameters aren't bad.
Moderate lighting and flow are essential. Too much of either makes them unhappy.
I would do an iodine dip and raise the frag to lower third of tank off sandbed for now and Do feed 1-2X per week.

 

[Hermie]

might be a mismatch between how much light it's getting and how much nutrients it has access to (nitrogen/phosphorus); just my thought

 

[artieg1]

I had almost exactly the same thing happen to me. Moved it to lower light and flow, and it came back stronger than ever. I've definitely learned that if only one coral in your tank is not happy, placement is almost certainly the issue.

 

[Pau Hana Reefer]

Thanks everyone for your feedback. I ordered some iodine dip that will arrive tomorrow.

I also suspect it to be something related to flow and lighting. I moved it to the sandbed, where I placed it when I first got the coral back in June. It thrived in this location... and then moved it up on the rocks and it started showing problems. When I moved it back on the sandbed, it seemed to help, but it has since started worsening again. Crazy thing is I have another euphyllia right next to it and it is thriving.

I'll try the iodine dip tomorrow and will keep trying to move it around to see if it helps. Thanks again for everyone's feedback!