I saw that. Was amazed.
I live on a beautiful, clean and clear lake in upper east Tennessee. I can stand in water up to my chin and have little fry, tiny bluegill, etc., nibble on my feet and legs, and see them like looking through a glass window.
It tickles. I never dreamed someone would make money off this.
It seems that we've hit upon a business opportunity for you! You could open up an eclectic health spa at your lake and offer beauty packages including the 'baby fish nibbling at your toes' treatment as well as burying women in the mud up to their chins on the shore.....you could also teach them how to fish (for an extra fee, of course)
:-)