For this product we require a completed Drug & Chemical Affidavit on file. If you have not submitted this form to us, please click here, and fax (813-671-8237) or email (fishsupplies@verizon.net) back to us. Thank You. AVAILABLE FOR REGISTERED DEALERS AND WHOLESALERS ONLY! For broad spectrum treatment and control of bacterial disease, such as body slime, mouth fungus, Furunculosis (open lesions and swelling), bacterial gill disease and hemorrhagic septicemia (blood spots without sign of skin damage). For use in both freshwater and saltwater aquariums. Can be used with any API Ich, fungus or parasite remedy to help prevent secondary bacterial infection. This medication will not color the aquarium water.