Is this just new growth ?

[Wrobertson1]

Is this just new growth ? The veryyyy thin line of white at the bottom is what I’m referring to, this coral has grown a good bit in the past month but I never noticed a white line around the base

 

[Tautog]

Yes, white line is your coral killing Coraline algae to expand its territory

 

[jda]

Yes, it is growth. Tips and leading edges have different kind of zoox and can look different.