Hair algea eating fish - Suggestions please

[Hi all. I have a small area around the lower part of a coral that has a good amount of hair algae I would like to get rid of. Can anyone suggest a fish (preferably small) that would feast off this algae? I'm not necessarily looking for a fish that feeds exclusively off hair algae. I have a tang and a foxface that won't take it, and I feel the algae is prohibiting further growth of the coral. Thanks for the suggestions.]
 
[A Diadema Urchin (long spined), or a small herd of hungry snails from the LFS will do wonders.

Put them on the spot repeatedly.]
 
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