Is this a plant or micro algae?

[rockdiver]

So I have these 3 types of plants or micro algae.
Does anyone know the name of the tree leafy stuff and then the covering green over the rocks.

 

[tbrown]

The two in the first picture both look like caulerpa variants. Not sure on the third one though.

 

[ThePurple12]

I see Acetabularia but could be wrong, fern Caulerpa, Sargassum (not 100%, need a clearer pic) and Caulerpa prolifera in the bottom right of the 1st pic.

 

[rockdiver]

Hmm I will see if I can pull some and get a better pic of the one on the rocks.
Caulerpa prolifera is correct after I looked at it.
The 2nd pic is like a translucent purple / blue leafy that grew on a red sponge that was on the LR really cool looking. Hard to get a good pic of it

 

[Kuub]

I had same algae on live rock when it first arrived.
First Pic bottom right, caulerpa ashmeadii or Mexicana.
Second Pic, some type of gracilaria.
Third pic, I could never find an id on. It lived for a bit but slowly went away over time.

 

[rockdiver]

Cool thanks
Ya the last pic stuff is growing like crazy. It was cool but yesterday I got home and it was all over 1 rock so now I was wondering what it was.
My yellow tang won't touch any of it but loves the sheets off a clip lol