| | Re: Is this what I think it is????
Well that's what I thought at first but, it seems to be popping up rather fast in small patches like this. I used to keep arowana for a long time and sometimes a shrimp or other piece of large food would go by unnoticed for a day or so, and it would get that whitish fuzz on it, but this stuff seems to be popping up all along the rocks. I do have new dirt underneath the rocks. I just hope I can get it under control before it takes over.