1000!!! Mushroom Propagation!

Cut them with scissors or a blade or cut them off of their foot. I don't think I have ever had one die from this. They can even be cut into 4 or more pieces. Sometimes they do drift away in the current though. In a large tank cut them in the tank if you want. In a small tank I would cut them outside of the tank in some tank water if I had more than a few to cut.

Good luck. I think you will be surprised just how easy it is.

Cool. Now you can  experiment on the big one!

I usually don't chop up individual mushrooms.  It works well other that it takes a while for them to grow back to size.  They are quite prolific on their own.  They will spread to surrounding rocks.  They hop off their base rock when the population gets tight enough.  I place the single mushrooms in a shallow tray with aragonite gravel/rocks in it and a mesh top.  In a week or two the mushrooms have attached.  You can glue the gravel/mushroom pieces to the rock with CA and they willl attach and spread on the new rock.  I attach ~40 mushrooms to rocks every few months or so.