Can someone identify what is going on here and how to get rid of it? There’s dark green stuff that is only on the sand bed (that I can see) and it has long strands that look almost like a web or a mat. It doesn’t stand up and blow around. Of course there’s the typical brown stuff and now reddish colored stuff...lots of colors of stuff, basically Lol. I just did a 25% water change last weekend. I will be doing another change this weekend. But it seems to just keep getting worse. It’s a 20g coral QT.
I appreciate some help id’ing! Thanks!!
I appreciate some help id’ing! Thanks!!


