ID on rocks please

[Srh444]

Hello,

I have seen somewhere a photo of this but can't find it

I have these growths / things that have astarted to appear on my rocks. Does anyone know what they are please? Is it bad? Need to get rid of it, if so, how? Please see photo below.

Many thanks

 

[Srh444]

photo attached

 

[DDenny]

I don’t see a photo

 

[Srh444]

photo attached

It's the small white patches on the left

 

[Srh444]

I don’t see a photo

Photo is attached now. Any ideas please?

 

[TokenReefer]

Looks like coralline algae. You don't want it?

I could be wrong IDing of course

 

[DDenny]

I assume they done move? Is the rock aquaculture live rock or dry rock when you started? Was thinking coralline algae as well. Just means your tank is maturing and that the parameters are good. If it is coralline then it will use up alk, Ca, and Mg along its florals if you have any corals in your tank.

 

[Srh444]

Looks like coralline algae. You don't want it?

I could be wrong IDing of course

The white patches you think are coralline? They are cropping up quite a bit. Do they grow over corals - they are flat though.

Obvs I have no idea

 

[Srh444]

I assume they done move? Is the rock aquaculture live rock or dry rock when you started? Was thinking coralline algae as well. Just means your tank is maturing and that the parameters are good. If it is coralline then it will use up alk, Ca, and Mg along its florals if you have any corals in your tank.

No they don't move and they're very flat.

The rock is the type that when you put it in the tank it becomes live after a few weeks. Aquaculture live rock I think.

I do have corals - zoas, bta's, toadstool, leptoseris and firework coral.

Thanks for your help.

 

[Srh444]

The white patches you think are coralline? They are cropping up quite a bit. Do they grow over corals - they are flat though.

Obvs I have no idea

Thanks for your help.

 

[TokenReefer]

Got any pics from other angles?

 

[Srh444]

Got any pics from other angles?

Here are a couple more, taken in white light.

 

[Srh444]

Got any pics from other angles?

I took some photos from other angles where you can see the white patches. Any ideas please?

 

[Dan_P]

It's the small white patches on the left

Are those white patches hard or soft.

 

[Srh444]

Are those white patches hard or soft.

Hard

 

[Dan_P]

Hard

I wonder if they are patches of dead coralline algae. Only thing that I could think of.

 

[Srh444]

I wonder if they are patches of dead coralline algae. Only thing that I could think of.

They've appeared in this last week, hence not sure what they are?

 

[Cichlid Dad]

It's the small white patches on the left

What kind of reef rock is that photo of

 

[Srh444]

What kind of reef rock is that photo of

What kind of reef rock is that photo of

It's aquaculture reef rock

 

[Cichlid Dad]

It's aquaculture reef rock

Hmm, I've never seen it look like that, what brand or type if you don't mind