Yep, I'm pretty confident it came from the skimmer. Reminded me a lot of what I saw from looking at a sample from my skimmer cup a while back. Nothing like my ATS, sump bottom, or rock detritus which I've also looked at several times now.
I got a nice sample from the middle inside of a big chunk.
Uploading pics and videos now. I did see something I've never seen yet. Which isn't saying much as I'm always finding something new. So no idea if its from the Vibrant or not. It is possible.