rock color

So a few weeks ago my rocks started turning dark red assumed it was coralline. Well a few weeks later I'm getting this amazing bright purple on my rocks and also noticed some bright orange spots which seems a little odd..





Orange spots on back side of front rock kinda hard to see.

 

I would say that the red is cyano. The orange could be sponges?

 

My red is all turning purple. Looks like coralline to me .. but could be wrong.

 

The darker red and purple both look like coraline algae to me. The quality of the photo does not allow for a goo look at the orange areas.

 

I'd say it's all coralline....

 

Ya couldn't get a good angle on the orange. Doesn't look like a sponge it's more of a flat crust like material

 

The orange is coralline as well, some of the red corallines fluoresce orange under actinic lighting.

 

Good to know. Thanks.

 

Even getting some yellows. Kinda hard to see on camera

 

It's all coralline.