Stupid Question? Hope not - Do coral eat coralline?

[ChrisKSB]

My corals were starting to go nite-nite, elegance was all but closed. I decided to scrape a bit of the coralline off the back of the tank. There is a bunch of little coralline flakes floating around and suddenly all the corals sprang to life. My elegance who doesn't often open to her maximum beauty is in full bloom! So yeah, if there were bits of coralline floating around...would they be grabbing/eating it? Just curious!

Thanks.

 

[JGT]

No. You mighta released other nutrients when scraping which caused the corals to open up.