Coralline or cyano?

[SplishsplashME]

I thought I was getting coralline spread but everywhere I see the pink/purple it is followed by a blackish slime. Is the pink/purple the cyano or what?

 

[totion]

Take a tooth brush and scrub it. If it comes up its not coraline and likely cyano

 

[SplishsplashME]

The black stuff come off but the reddish purple stuff stays

 

[NanaReefer]

Redish/purple is Coralline. Black stuff I've no idea, sorry.


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[Reefing Madness]

The blackish slime is a dark red Cyano. New tank?

 

[SplishsplashME]

Yea a few months old

 

[mike007]

Just part of the process should go away if it is cyno. Keep water parameters in check and don't overfeed and you should be fine.

 

[SplishsplashME]

Sounds good all my rocks are greenish too