Sun Coral Dark Patch

[nigelwhite85]

Hi,

My sun coral has been doing great and is regularly out and seems to getting bigger but today I've noticed what seems to be a dark patch on it. I've included a picture below. Any ideas on what this is and if it's a problem?



Thanks!

 

[BarryV]

I would try to remove it with a Q-tip if you can.
Barry

 

[nigelwhite85]

Thanks. It all came off and the coral still seems happy.

 

[jccaclimber]

It looks like a patch of cyano from where I'm sitting.

 

[Sapelo]

I agree, looks like cyano from here. Do you have this elsewhere in your tank?

 

[nigelwhite85]

No other patches. Think some of it was the skeleton of the coral and perhaps that made it look worse than it was. Everything seems good now. Thanks for the help.