foxface or kole

[Willow]

my tank still shows some nitrates (10 i think) so im not quite finished cycling yet. when i am though i should have a nice crop of algae for someone to eat. does anyone see a problem with adding a foxface or kole tang to the tank to help with some algae control as a first fish? is there one of these more efficient than the other? i was also thinking down the line at some point i would like to add a chevron tang, would a kole and a chevron pose any problems together?

thanks.