Need heal with algae ID's

[whoasked]

I need help with algae ID for two algae that hitch hiked into my tank. I dip and treat with h2o2. But these made it through. Fluconozol knocked them back but they survived enough to come back. The one is not hair or bryopsis. It's almost like chaeto texture, but it's not chaeto. Let me know what you all think.

 

[*GAREEF*]

The first one I can’t tell. Can you take a clearer picture under only white light?
The second one looks like Ulva.