White crust on live rock

[jfbhd4]

I have this crusty white stuff on some of my live rock.
I dont think it is hurting anything, but I am interested in what it is.
It is starting to grow some green/brown/red stuff on it.
I may be able to get a pic if needed.
Thanks.

 

[Chelsey]

Pics would be very helpful

 

[StupidsReef]

That could be a sing of low calk within your tank. When the calk levels in my tank dropped below 360 and took a plung into the upper 200's all my purple coraline started turning white. But pics would help to indentify what type of white crust your refering to.

:wavehand: chelsey

 

[JxMetal]

I get white crust lines in my coralline. But that's because of my urchin leaving tracks I think.

 

[jfbhd4]

I will try to get some pictures today.
My tank is about 2 months old and I havent ever added calcium.
Should I?
I only have a few soft corals.

 

[MayoBoy]

Is it on the underside or top or both? It could be sponge, coraline bleaching or something else. Pictures would be best.

 

[jfbhd4]

New white crust pictures

New white crust pictures

Here are the pictures of my rock
look in my gallery at the first 2 pics.
I have no idea how to get them into the message.

 

[Chelsey]

The white stuff is bleached coralline or just part of the rock itself. I have some of that on the undersides of my live rock where it's been sitting in the sand.

StupidsReef: hello to you too!

 

[jfbhd4]

Should I do anything about it?

 

[Chelsey]

Nope, there's nothing you can do about it. It'll go away with time and be replaced by purple coralline. How old are your PC bulbs?

 

[jfbhd4]

2 months ld