Aquascape Ulcer & Bacterial Treatment is used for the treatment of bacterial infections, fin rot, open sores and ulcers. Bacterial infections and ulcerations are primarily a secondary infection resulting from external damage caused by parasites, physical damage caused by improper netting or rough handling. Most disease problems or issues may possibly be linked back to poor water quality or introduction of sick or stressed fish. Before adding any medication to your pond or holding system, make sure and verify all water parameters and rectify any issues before treatment. This product is not available for sale or distribution in the state of California.