- Joined
- Oct 28, 2016
- Messages
- 355
- Reaction score
- 167
- Location
- 92694
- What state or country do you live in
- California
I have noticed that one side of my tank has been growing this red crap under the sand. I can only see it against the glass as pictured. It has come to the surface but only a very thin strip in the front against the glass. I am not sure what to do at this point, just ride it out or do something?


