spider web

It’s not the stringy vermitid snail stuff it’s at the base of some zoas and then at various places on the rock. tried to self help with an internet search but found nothing. EDIT: found https://www.reef2reef.com/threads/what-is-this-white-stuff-growing-on-live-rock.712671/ Appears to be...

Hello all, I had a FOREST of pulsing Xenia for a couple years until a month ago. I sold a frag and moved stuff around, some wood polyps, and cleaned up the tank and then they all died off in a matter of a week. I noticed this spider web looking stuff and wondered if it was something that could...

I got home from work and noticed these very strange looking spider web like pouches in the display tank. The biggest one in the picture seems to be resting in a dead spot where maybe some uneaten food is under it. I started the tank on 10/10, and added my first fish about a week ago. I have not...

Hey guys, Ive started to notice these last few days some stuff on my wave maker only at the bottom and the front of it. I guess it looks likes hair or a spiders web, but I can only see it on the wave maker. Any ideas what it is or if I should be worried?