What are these bubbles on my Acro?

[SEAMONSTER]

Hello everyone,
I got a very small frag of a yellow acropora with blue polyps. It started developing these bubbles on it. Please help me identify it.

 

[SEAMONSTER]

Need help! Contagious? What is it? :noidea:

 

[zigginit]

i think i had a coral do that in a small spot once. it went away. but yours look like its about to die. your rocks look bran new? tank shock?

 

[SEAMONSTER]

Yeah, started out with dead rock, tank was cycled for a month and a half before I put the corals in (scroll coral, montipora cap (orange), and a purple superman). The coral died 4 days ago, then I noticed today the bubbles in the tissue on my monti. I just took out the coral and scraped and cut that part out, outside of tank. The rest of the monti is healthy. What is that bubble thing? I never seen it before. My purple super got a small spot of rtn,3 days ago, I cut that out too....

 

[danagui]

thats weird...kinda looks like what happens when u put acans in iodine for too long...but that...i dont know....

 

[SEAMONSTER]

Yeah, its trippy, I think its contagious too.. My monti had it till I eradicated the affected area, that coral grows fast anyways, LOL! My scroll coral and superman are not affected by that, no symptoms. Im wondering what it is...