Algae identification / treatement

[ajjw0828]

Hi all,

My sister just got this IM30 tank and it had this algae on it. They scrapped it off, bought a small tang, cleanup crew. Algae is coming back. I have never had an algae that looked like this in my tanks. I recommended they dial back on the pellet food. Any ideas on what can remove this kind of algae. My sister mentioned the tang doesn’t seem to want to eat it.

 

[lapin]

I see a few different types.

 

[ajjw0828]

I see a few different types.

Any good recommendations for getting rid of?