Zeozym & Biomate to clean rocks from traces of hair algae?

[muffin]

I recently had a pretty bad hair algae infestation. Took care of it by lowering PO4 to weaken the algae, and then removing it manually.
95% of it is gone now, except the rocks are still covered in patches by a green film (leftover from the hair algae).

Will zeozym and biomate clean it up?

P.S. I do have a cleanup crew but I don't want to buy more snails purely for this purpose.

[jacky]

You can try Zeo CoralSnow, which should help.

[G.Alexander]

BioMate will reduce the PO4 level furthermore so it can be used additional to Coral Snow. Both will not have a direct effect to the algae but will support the process to get rid of them. You can dose 2 ml CoralSnow / 25 US gallons and 2 drops BioMate / 25 US gallons daily for 2 weeks. Additional remove the algae manually as often as possible. If you already have ZeoZym you can dose it additional every other day for some time.

G.Alexander