Identify?

[Djbeasley05]

Found this growing next to my birdsnest. Any idea what it is? Doesn't seem to wave with water flow. Looks pretty rigid.

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[AlSimmons]

It looks like some type of bubble algae.

http://reefkeeping.com/issues/2002-02/hcj/feature/index.php

 

[eastlake]

Agreed, it looks like bubble algae to me

 

[jlmawp]

+1

I’ve also noticed that this type always grows on or around a coral frag. Maybe that’s coincidence, but just what I’ve seen in my tank.

 

[Fishchronicles]

Found this growing next to my birdsnest. Any idea what it is? Doesn't seem to wave with water flow. Looks pretty rigid.

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I don't think it's bubble algae. I had some of this on a frag I got from reefapalooza this year and I did some research. I think it may be a type of seaweed! It's hard to the touch and not slimy like bubble algae is. Hope this helps!

 

[Sugar Magnolia]

I don't think it's bubble algae. I had some of this on a frag I got from reefapalooza this year and I did some research. I think it may be a type of seaweed! It's hard to the touch and not slimy like bubble algae is. Hope this helps!

Bubble algae, valonia. Same thing.