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View Full Version : Sponge ID? Or cyano


Robjrussell
08/28/2017, 03:07 PM
Hey all,

Returning reef keeper after a decade plus. Trying to figure out if this is sponge or cyano? I am leaning toward sponge as from the side it looks like it is a little bit grown off the rock.

Any ideas?

Cheershttps://uploads.tapatalk-cdn.com/20170828/4aa1b03ac4927d5128ddeb57ad2e24dc.jpg

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Sugar Magnolia
08/28/2017, 03:21 PM
Have you touched it? Try brushing it off.

Robjrussell
08/28/2017, 03:23 PM
I haven't touched it. If I brush it off would that be bad for rest of tank if it's cyano?

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Sugar Magnolia
08/29/2017, 01:16 PM
Just use some airline tubing to syphon it out. It does look like cyano.