Pond Doctor Anti Bacteria is a powerful all purpose pond disinfectant specifically designed to reduce the levels of harmful bacteria in your pond. Anti Bacteria may also be used to sterilise nets, baths & treat many other infections. Anti Bacteria Treatment disinfects fish & ponds against harmful bacteria. Use sucessfully in treatment of ulcers, frayed fins, body rot, fin rot, mouth infections, traumas, red vent, damage, sores & other infections. May be used internally by soaking pond food before feeding.