Pnut52
Aquarium Advice Apprentice
- Joined
- Sep 28, 2011
- Messages
- 28
I have this brown algea that has showed up it came and went now it back. It was just brown on the face of the rock now there is one or two spots stringing out see pictures. All levels in tank are reading fine. I do water changes every week. Also pulled a little rock out and tried to clean of with a brush no luck won't come off.