Can you ID this nuisance algae?

[mylertitchell]

Hi,
I have some GHA, some bubble and another that I’m guessing is sea lettuce? Anyone know what it is. Its quite tight to rocks or maybe it’s the tangs tucking into it?

Flame Hawkfish settling in Bumblebee Reef

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Thanks

 

[mylertitchell]

 

[Tamberav]

Ulva

 

[GoodKat]

Sea lettuce. Lots of fish love to eat it. It shouldn't get out of grow.