Is this blue and orange coraline?

[Bildobastig]

<img src="http://img.photobucket.com/albums/v485/bildobastig/Tank/coraline.jpg" border="0" alt="Image hosting by Photobucket"></a>
the orange is easier to see in person. i think it may be the camera but it is in the bottom left and top middle/left.

 

[Jameyh]

Not sure if this hurts or helps but it looks like your white balance was off..

 

[robwsup]

Looks like bleached coralline. Not sure I've ever heard of blue coralline algae.

 

[tbass]

I see a spot of purple ....