Coraline algae?

[MarineCorp]

Hi All,

What’s your thoughts on this? Coraline algae or something different? (Just above the mushroom spreading on the rock). It seems to be hard to the touch.

Any help would be great.

Thanks!

 

[MarineCorp]

Bump. Can anyone let me know please

 

[IslandLifeReef]

Could be. It could also be cyano and you are feeling the rock beneath. It looks like there are bubbles in it.

 

[dwest]

Hi All,

What’s your thoughts on this? Coraline algae or something different? (Just above the mushroom spreading on the rock). It seems to be hard to the touch.

Any help would be great.

Thanks!

My vote cyano.

 

[Rover]

It is a little hard tot ell from the picture, but the purple stuff looks like coralline.

If you want to be sure, just reach in and rub it! Coralline won't come off, and will feel like the rock. Well, it won't come off easy, you'll need to use a fingernail and even then it might not budge. If its cyano or something else, it might brush right off.

 

[miPapareef]

What’s your thoughts on this? Coraline algae or something different? (Just above the mushroom spreading on the rock). It seems to be hard to the touch.

I think you have both.
If the part I marked as coralline does not blow or brush off easily, then it mostly likely is coralline.
I’d bet the parts I marked as cyano you can blow and brush off easily.

 

[MarineCorp]

I think you have both.
If the part I marked as coralline does not blow or brush off easily, then it mostly likely is coralline.
I’d bet the parts I marked as cyano you can blow and brush off easily.

Yes where you marked yellow is where it was hard and where I felt it. I will check where you mares it cyano and get back to you.

Thanks for the opinions everyone!