API EM Erythromycin is a broad spectrum treatment used to control bacterial disease. It can be used to treat body slime, mouth fungus, Furunculosis (open lesions and swelling), bacterial gill disease and hemorrhagic septicemia (blood spots without sign of skin damage).It can also 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:
Empty one packet directly into aquarium for each 10 gallons of water
Repeat dose after 24 hours
Change 25% of the aquarium water 24 hours after second dose
Repeat treatment for a second time, for a total of 4 doses, followed by a final 25% water change
Add fresh activated carbon or replace filter cartridge after treatment
 
Good water quality is key to a healthy, beautiful aquarium or pond, but the tap water you use often contains disinfectants, such as chlorine and chloramines, to make water safe for drinking. These same disinfectants are highly toxic to aquatic life, and may destroy fish gill tissue and prevent the uptake of oxygen, leading to fish loss. Even low levels of chlorine and chloramines irritate delicate fish tissue. API water treatments and conditioners work quickly to make water conditions superior and safe for your fish, so you can get the most out of fish keeping and easily start or maintain your aquarium or pond. Whether you’re detoxifying ammonia, or treating your fish for disease, API brand has the right treatment for your fish keeping needs.