The Arizona Court of Appeals plans to hear arguments Wednesday on a civil lawsuit involving a Gilbert spa owner whose clients paid to have fish eat dead skin off their feet.
The case was filed by the Goldwater Institute on behalf of spa owner Cindy Vong.
A lower court dismissed the suit.
The Arizona Republic reports the Arizona Board of Cosmetology threatened to pull Vong's license in early 2009 if she didn't stop offering the pedicure service. The board alleged the fish were unsafe because they could not be sterilized.
Vong says the board's ruling hurt her financially.
The Institute sued in December 2009, alleging the board lacked jurisdiction over the practice because it was not a cosmetic service and that it violated Vong's right to run her business.