Sounds like it's dead but you can't get rid of the body. It might be too fine for your sand filter. You could try adding some DE
or fiberclear and hope that can catch it.
Thanks Richard. I ordered a 2lb. bag of DE from Amazon...3-5 days to get here..
I do not have a sock on my skimmer, either.
Today I will add a sock and I think I will try vacuuming to waste (unless I shouldn't????)