I didn't see it sporulate or go transparent. It just seem to melt without any residue.
It seem to start just after I had torn a bunch out to give to a friend.
When I first noticed it was fading away I started dosing with Reef Complete. It's all I had on hand that had Iron in it except for some rusty nails.
I quite using Reef Complete after I took time to read the label. One of the components was copper - imagine a Reef additive with copper in it.
Maybe the few strands that I have left will grow back.
The worms and pods are still thriving.