GSP

[outtafocus]

I have my GSP on my bare bottom glass. Should I be worried about how much it will spread? It is slowly creeping along the bottom. Should I place it some where else?

When I had this GSP in my old 10gal with sand, it was on the substrate. When I went to remove it, I hadn't realized that it had slightly attached its self to some rock, and I ended up tearing a small piece off and it remained on the rock. This piece had no polyps it was just purple "stuff".
Well that purple "stuff" is now growing quite well, with many polyps and is already expanding. I am pretty surprised.