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.

Directions for Use (Packets): For best results, remove activated carbon or filter cartridge from filter and continue aerations. For each 10 gallons (38 L) of water, empty one packet directly into aquarium. Repeat dose after 24 hours. Wait another 24 hours then change 25% of the aquarium water. Repeat this treatment for a second time, for a total of 4 doses. Then make a final 25% water change and add fresh activated carbon or replace filter cartridge. Treatment may be repeated if necessary.

Directions for Use (Bulk): For best results, remove activated carbon or filter cartridge from filter and continue aeration. For each 20 gallons (75 L) of water add 1 scoop (1 tsp.). For larger systems, for each 240 gallons (908 L) of water add 12 scoops (4 Tbsp.), or for each 960 gallons (3,634 L) of water add one cup. Repeat dose after 24 hours. Wait another 24 hours then change 25% of the aquarium water. repeat this treatment for a second time, for a total of 4 doses. Four doses are required for a full course of treatment. Then make a final 25% water change and add API BIO-CHEM ZORB, fresh activated carbon, or replace filter cartridge. This treatment may be repeated if necessary.

API E.M. Erythromycin Powder (For 378L)