Is this coraline algae?

[clbom]

Hi everyone,

I need help identify the pink thing on the rock. Is it coraline algae?

Thanks,
Candice

 

[xxkenny90xx]

The pink towards the top right? That appears to be some kind of Putty?

 

[clbom]

The pink towards the top right? That appears to be some kind of Putty?

It’s the top of the bottom rock.

 

[Rickybobby]

When your black power heads and overflow go pink you will know.

 

[vetteguy53081]

The purple appears to be coraline

 

[clbom]

When your black power heads and overflow go pink you will know.

I haven’t seen they go pink yet, i was just wondering if the dry rock i put in the tank has coraline algae

 

[clbom]

The purple appears to be coraline

Thank you! I just want to know if the rock already has coraline algae, so i dont need to seed the tank