Coraline growth

[willbratz]

This is one of my rocks, are there 3 colors of coralline on here, or am I being hopeful? I'm referring to the purple, green and white.

 

[squidward]

This is one of my rocks, are there 3 colors of coralline on here, or am I being hopeful? I'm referring to the purple, green and white.

Looks like coralline algae to me ..

 

[Leonardo7689]

Actually, there is two. Purple and green. I don't think there's white coraline algae

 

[willbratz]

Actually, there is two. Purple and green. I don't think there's white coraline algae

Thanks!! I was wondering about the white because it doesn't brush off, so I just thought it might be three. I'm more than happy with two, I'll tell you that!!!