This is kind of ironic as my mushroom was just starting to lift and I was wondering what it was doing XD here’s an image. You can just see it starting to lift on the pedal
My mushroom coral has about five babies around it’s base very close to the mother coral. And they’re all a bit shaded so I think the coral is moving to give them more light so they can grow in.
This could just be something it does. Leave a few babies and move on to another place. After all every coral is adapted to fill in space. Real estate is the number one priority for every coral... that’s why they have sweeper tentacles, nematocysts, et cetera. So I think this could just be one of it’s methods for taking over.