Algae ID, Please Help! (see photos)

[AustinC63]

Hi,
Need help ID'ing this nuisance algae in my tank. It starts as a small round bump, then appears to start growing a stalk/stem. It is a light green/yellow color and can apparently grow with next to no light as its inside of caves in my rockwork. Please help!

I'm thinking maybe bubble algae or caulerpa racemosa? IDK I'm a noob, school me

 

[GHOSTLY]

Pineapple sponge I think. They’re fine

 

[RedFrog211]

Would you be able to provide photos with more white light?