I had a few purple mushrooms fall of some rocks when I moved them. They are still alive and 3 are kinda living at the base of another rock. I try to pull them out and they shrivel up and go under the rock. Anyways, if I want my mushrooms to grow on other rocks and I only have one rock with a bunch of them, how do I do that? Do they spread on their own? Can I cut them off and glue them to another rock? How do they reproduce? I would like to put some on the other side of my tank...