Red spots cyano?

[eqbal9947]

Hey guys, are these red spots in the rock cyano? It’s hard to scrape off and spreading very slowly

 

[Coral-vault]

How old is the tank?

 

[eqbal9947]

How old is the tank?

8 months

 

[Ron Reefman]

Cyano is usually quite easy to just blow off rocks with a turkey baster. If it's hard, it's more likely coraline algae, which is OK.

 

[eqbal9947]

Thanks!

 

[djf91]

Yep, definitely a type of red corraline. Does often resemble cyano though

 

[Coral-vault]

8 months

Its not cyano. I wouldn't worry about it. If you don't like it urchins often will eat it