I found some mexican red clay today at Michaels.
This stuff...

It was hard to find, it wasn't in the Crayola clay isle, but one over down at the bottom. But this is the stuff Dustin talks about on his videos.
I found some mexican red clay today at Michaels.For a dirted tank what kink of clay should be mixed with the soil? My local michaels only has "manufacted" red clay. They only carry grey in the natural variety. Would that red be fine? Are you supposed to bake it or just let it air dry?