clam on it's way out

[mark]

Just come home to see my larger crocea in bad shape, looks like mantle been eaten on, retracted plus a brisle worm out in the light. Know was okay last night near 11:00pm.

I'll be getting some new numbers but measured in the last couple of days pH 8.1, Ca 425, Alk 11.2.

Only recent things were a 20g water change 2 days ago, added a small peice of Galaxy 4 days ago, another crocea 5 days ago and some SPS frags and a clown about 2 weeks ago.

Here as now plus a picture from day before yesterday.

As don't want fowling main tank will move a 10g isolation tank with small HOB power filter with carbon.