I'd for the white stuff.

[dwebb1031]

So I have the white substance growing on my LR. It may be hard to distinguish it from the rock itself, but in it pic it is over the green in crusting algae. Looking at it in person the best way to dice one it is "it looks like a bird crapped on my rocks" please help id.


75g reef

 

[Reefing Madness]

If its old Live Rock, it looks as if its the dead and old coralline growth.

 

[dwebb1031]

It's brand new growth that over the past few days appeared on rock that I cured (dry before). Also the patches of red and purple started showing about the same time. My lfs says it's a type of coraline?


75g reef

 

[dwebb1031]

Just to give an idea of growth rate. This is a shot from yesterday.

This is the same piece today.

Now it hasn't spread that much on the other pieces, in fact it hasn't noticeably spread at all on the other pieces.


75g reef

 

[NanaReefer]

Looks like something is eating the algae clean off the rock.

 

[dwebb1031]

Maybe


75g reef