What is this bright red stuff on my rock

[DattTheHun2]

What is this red thing/stuff on my rock, can't find anything on google

 

[KrisReef]

If there is nothing on Google then it’s not really there?

Could be coralline algae or Cyanobacteria, can’t be sure from the blue picture.

 

[Glenner’sreef]

Red coralline is on most of my rocks. When the lights ramp down to blues, the red coralline really shows up. It looks like that’s what you have.

 

[DE FISH]

picture under white light would help with id

 

[Bj’s Reef]

I’m curious as to what you have as well.

 

[DattTheHun2]

picture under white light would help with id

Here it is under whites

 

[Glenner’sreef]

Hmmm? Now I don’t see it?

 

[Derrick0580]

Well first things first…does it come off easily? That will narrow things down a bit. Cyano will come off super easy where as coralline will be calcium based and be encrusted and hard.