The Starfish has died!

I bought the Sand Sifting Star (Astropecten polycanthus) back on 4/16/05 so its been 13 months. I was concerned yesterday when it was lying upside down and didn't seem to make much progress moving all evening.

I netted it out and it was only slightly deteriorated so I expect it didn't have an impact on the tank. Either way, I should check my water quality.