coraline

[fishkeeprian]

Hi,

Can someone please advise if the dark purple spots are growths of new coraline?

I have attached a photo thanks.https://www.dropbox.com/s/vgfqov4pjpsoyst/2016-05-10%2006.52.28.jpg?dl=0

 

[Acrononomus]

Lite purple yes.... Darker spots are a different type ....

 

[fishkeeprian]

Hello Acrononomus thank your reply, are the dark purple growths a bad algae?

Thanks

 

[pyithar]

i have both colors of coralline in my tank. when you touch it, if they're hard and don't come off easily, then they're coralline.