Whats the going rate for GSP these days?

[DirtMcGurt]

I've got a good size sheet on my back glass. It's about 12" x 8" and I need to try peeling it off before it absorbs one of my gyre pumps. It's already got my temp probe in its belly...

 

[AC1211]

I've got a good size sheet on my back glass. It's about 12" x 8" and I need to try peeling it off before it absorbs one of my gyre pumps. It's already got my temp probe in its belly...

I see them for about $15 for a decent sized rock of about 5" at my lfs.

 

[wadesims2000]

I give it away in large chunks usually. I want a tic pice though for my puffer tank of your giving it away

 

[jrill]

Free cause few folks want it in their tanks.