Live rock getting green spots???

From what I got just like everyone is saying its harmless. Cool colors though
 
I ask because in the pics I've posted on this post it was coralline and now it looks like slime
 
Coralline you can't just wipe off with your finger, cyano you can. Coralline you have to scrape off.
 
Well than its cyano because I grabbed my live rock and I started scraping it off like algae
 
Well than its cyano because I grabbed my live rock and I started scraping it off like algae
Scraping? As in not just a finger flip. If you had to use something to scrape it off with, then its Coralline. Cyano will wisp away with a flip of water near by.
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

  • Yes!

    Votes: 32 45.7%
  • Not yet, but I have one that I want to buy in mind!

    Votes: 9 12.9%
  • No.

    Votes: 26 37.1%
  • Other (please explain).

    Votes: 3 4.3%

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