Identify?

[scramer74]

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I have a few spots on my rock that are a dark redish color and kind of soft.

Also, I'm seeing much brighter spots on the rocks that look like coraline. The spots have been getting brighter. My rocks were a dry, is it possible for coraline to come back to life?

 

[popsbjd]

I think you introduced it into your tank when you put corals in. I can see plenty on the frag plug/rock in that picture.

Pops

 

[dball711]

If its hard then its probably coralline, coralline will grow on any hard surface so its not really coming back to life. If its soft then its something else.

 

[scramer74]

Ok thanks Pops and Dave, so it will just spread on its own? Yes, there's def some on the frag rock I got from Deb.

 

[dball711]

Yes it will spread all over...good or bad depending on your tastes. I have urchins that eat a lot of it but I have to scrap what they leave on the back wall.

 

[jennm]

Looks like coralline to me also.

Jenn