Clowns won't host bubble corals, I have 2 FPC and they run from it. Its sting is way to strong and at night it has sweeper tentacles that can reach 6 inches in length killing anything it touches. Looks like Doppler Radar.
Don't know about the bubble being popped havent faced that issue however, they are not as delicate as you may think. They get HUGE so give them ample room to spread. Check youtube videos on them.
As far as care light flow and medium light is ok, I have a friend that has a neon green bubble coral that he has had under power compacts for 2 years now and it even split.
They need to be inserted into the water bubble side down to prevent it from sucking in air as you put it into the water.
Outside of that I feed it brime, mysis and oyster eggs once a week. Not all but one of the three.
IMHO oyster eggs are a hidden secret in this hobby, my corals swell up almost twice they size once i feed them that stuff. Just remember to kill the pumps for about 10 minutes before you feed. You want still water and just baste the food above the coral and let it fall onto it.
