I think a better question would be how do I get rid of a mushroom!! You can just scrape them off of the rock, cut them into quarters, or halves, they have ALWAYS quickly grown back into fully shaped 'schrooms. I even heard of throwing a couple in a blender with tank water and pouring the soup back into the tank. Supposedly the small bits will anchor and regrow.
When I fragged mine. I tried to keep at least a small piece or the "eye" on each frag but even the pieces that didn't get a piece of the center regrew!!
Moral is...scrape them off and tie them down in their new home. The tissue that remains where you scraped them off will grow a new mushroom as well. This way, if you put anything next to it that the mushroom doesn't like, you have the "original" in its new location!!
Mushrooms are FUN to experiment with!!
