I put mine in last nite, and honestly I was shocked at the thread algae. It was on every frag plug but one. And I went back and looked at their site, and found many of my WISIWIG frags as "SOLD". And on none of them was the long threads of algae presen in the picture. Now it's long threads, waving in the current. I removed what I could.
I know for many people this is not an issue. But in my little nano, I don't have any real herbivores ("don't put a tang in that little tank!"). So it's an issue. Now - for dealing with Midwest Frags, I've introduced a new algae into my environment that I've had no evidence of to this point.
Bummer. First algae problem I've had with a vendor. I'm hoping these will be some d*mn good looking frags. Based on this single experience, I would not recommend this vendor without qualification.