Well kalkwasser doesn't seem to phase it.
I removed as many buds as I could - but they still came back pretty fast.
To my amazement last night - as I was leaning over the tank eating a piece of pizza, a small piece of Domino's fell into the tank.
Immediately - several of these loose buds started to migrate towards the sliver of pepperoni that settled on some star polyps.
Within minutes - these unknown creatures began to congregate on the tiny morsal of pizza - and they started to assemble into a colony.
I tested my ammonia, nitrites and nitrates - there were no spikes.
I think this thing actually filters the tankwater somehow.