Another question in regards to Crayfish and rock habitat... I willingly plead my ignorance of not knowing anything about them. Do crayfish just live among the rocks or do they also burrow down into the mud next to the rocks? Do they only burrow into the ground above the water line? What I'm getting at is my pond bottom is softer(sandy), and rocks tend to sink into the mud. I'm considering placing some kind of stiff sheeting down first to help suspend the rocks. But...does this hurt the crayfish abilities to live there?
