My thought on what is going on with this torch?

[SeanG1]

Looks like there is some algae or odd growth on this torch. Anyone know what it might be?

 

[steelheader.262]

I have that on my rocks as well, I believe it to be a darker Coralline Algae.

 

[joshkirkland83]

I have that on my rocks as well, I believe it to be a darker Coralline Algae.

Yeah there are a few shades. I have one rock thats covered in a mint green coralline.

 

[SeanG1]

Thanks! Should I be concerned about the fuzzy growth on the rest of the stalk? That just showed up in the past couple of days.

 

[SeanG1]

The stalk on the same torch is disappearing...any reasons this could be happening?

 

[thebluecatapilla]

That's a tube worm, nothing to worry about at all.

 

[SeanG1]

Below the tube worm, the stalk looks to be dissipating. Here is a side view. Hopefully you can see it.