Those are super hardy corals. Be careful they'll take over
Lol my mushrooms grow so slow. But yeah they can grow really fast. Mine have turned into about 6 in a year, so slow. But my tank is low nutrients so they grow faster in a higher nutrient tank
They thrive in moderate to low water movement with moderates to high light I run LEDs. My tank must be just right because I have to trim them back to avoid my pagoda, sps, and candy canes