- Joined
- Sep 12, 2016
- Messages
- 581
- Reaction score
- 330
What is this stuff? It looks like cyano but it feels like hair algae, I tried scrubbing it with a tooth brush and it did barely anything to it, very hard to remove. Seems to be growing on a couple frags
View attachment 15422305507118274538505010594039.jpg
View attachment 15422305507118274538505010594039.jpg


