Bryopsis on my glass?

[Jakepen]

So I set up my 1 gallon two weeks ago, and I believe I have bryopsis only on the glass. Transferred live rock and a few corals from my 30. I don't see any bryopsis anywhere else, just all over my glass. Is this normal? It's hard to get a picture, so I wiped some off with my finger...thoughts?

 

[Texas Reefer]

GHA

 

[Jakepen]

I guess I Should note I'm pretty confident it's bryopsis. Very fern like at the ends. I've just never seen it grow only on glass...