- Joined
- Mar 6, 2020
- Messages
- 606
- Reaction score
- 413
- Location
- SoCaL
- What state or country do you live in
- California
This has been on my GSP for about 2 weeks now. Thought maybe in was cyano but maybe it’s something else? Hasn’t spread at all and doesn’t seem to be hurting the coral. Thoughts?



