Is this Coralline algae

[BitFix]

I got some shells form my LFS with coralline algae on them to seed my tank a few weeks ago, now I've been starting to notice some purple stuff growing on my rockwork, but it doesn't look like normal coralline algae, and it definitively isn't Cyanobacteria. Is there another type of algae that is like this?

PS.: Sorry for bad quality, I haven't gotten orange camera filters yet.

 

[Auquanut]

Hard to tell from the picture, but it looks like coralline to me.

 

[X-37B]

If it wont blow off with a turkey baster if more than likely corraline.

 

[GThompson]

Looks as if the seeding may have worked

 

[BitFix]

If it wont blow off with a turkey baster if more than likely corraline.

It won't come out even if I scrubbed it. I was a bit skeptical since most coralline algae I see looks doesn't look as scattered as mine does.

 

[Johnnybananas]

Looks to be coraline although it’s hard to tell in pic but from what you have said it’s is probably coraline

 

[Qasimja]

It won't come out even if I scrubbed it. I was a bit skeptical since most coralline algae I see looks doesn't look as scattered as mine does.

if it doesnt come off easily then its corralline

 

[Chestnuthood]

Can someone help tell me what this green is growing on top of the coralline please?
Thanks in advance