Any idea what they might be? Underneath the frag they were on had some kind of web. A few days later the web turned into 50ish tiny polyps. I removed the rock and nuked the area as it looked like it was spreading. Don’t even know if it was related.
I mean the picture is mostly clear but also not much to see… totally possible those could be the dreaded Blue Clove polyps but also you do get accidental stuff on frag rack plugs touching each other… there are legit blue polyps that look similar