Need help with one of my feather dusters!

crt81

Member
I have a feather duster (white with red spots) it was doing great- openning everyday and it has been in my tank for a few months now. It is sitting right next to my other feather duster (which is doing just fine)
-so my question is- it hasn't open in a fews days/ maybe weeks and the tip of its tube it brownish/black looking,
Is it Dead?
 
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