Baby angels as algae eaters.

I had never noticed it before, but a few posts recently have reminded me of a 
something that I noted the last time I got baby angelfish.  

They would pick at algae.  I don't know whether they ate it or not, but they 
sure picked at it and were good at cleaning things off.

Has anyone else noticed this, and more important, has anyone kept them 
successfully on primarily vegetative matter?

David W. Webb
Enterprise Computing Provisioning
Texas Instruments Inc. Dallas, TX USA
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