Help with Algae ID

[Frogger]

My bristletooth tang doesn't touch the stuff, nor does he touch hair algae.

My tuxedo urchin doesn't touch either either, he only seems to eat coraline algae and film algae.

Still searching, bought a one spot foxface and he hasn't shown a liking either.

However my yellow tang mowed the stuff down until I fried him. (temperature too high in the tank) The largest inhabitant is always the first to go (low O2).

Still searching as its hit or miss with most algae eating things.