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nigelwhite85
09/24/2015, 11:09 AM
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?

329453

Thanks!

BarryV
09/24/2015, 12:46 PM
I would try to remove it with a Q-tip if you can.
Barry

nigelwhite85
09/24/2015, 03:46 PM
Thanks. It all came off and the coral still seems happy.

jccaclimber
09/24/2015, 06:36 PM
It looks like a patch of cyano from where I'm sitting.

Sapelo
09/25/2015, 04:46 AM
I agree, looks like cyano from here. Do you have this elsewhere in your tank?

nigelwhite85
09/25/2015, 07:15 PM
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.