Bent
I got nothin'
Looks like I spoke too soon. I see a little bit of it near the same rock in the video/photos. Not nearly as much as last time but it's there. I also think i'm seeing a touch of cyano just above it. Looks slimy and is a red rust color. I've not used GarlicGuard in a few days so we'll see what a 25% WC and a gravel vac gets me this Friday. I also plan on getting a handful of Trochus and Ceriths this weekend so maybe they'll eat it.
What are your nitrate levels? I find this crap starts to proliferate the more build up in the sump I get. Plus filter socks seem to really help. It seems to get worse the longer I go without socks and without taking the shop vac to the sump.