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Fish Ery Forte Erythromycin 500mg - Erythro mycin
We ship daily Monday thru Friday

Free United States Postal Service 1st Class Mail shipping for locations within the US

Priority and Express Mail shipping options are available at checkout for an additional fee.

Shipping to Canada and the United Kingdom for an additional fee.

We ship to USA, Canada, and the United Kingdom (because of custom issues no other countries are allowed)

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The presence of bacteria and parasitic organisms is relatively common in both freshwater fish and fish kept in household aquariums. The use of drugs and medications to treat these ailments is generally accepted as the most effective approach.
Note: Our website operates on adobe flash player which will be discontinued starting January 1st, 2021. Because of this our site may not function properly. We will be updating to a new system, but that will take quite some time. In the meantime purchases can be made at We are in the process of completing and it will be done shortly.

The Fish Mycin Forte brand has been discontinued.

Other related product is Fish Erythro Forte 500mg Erythromycin
To view this product click on the following link
Fish Erythro Forte

Fish Ery Forte Erythromycin 500mg


within the US by USPS 1st Class Mail
(other shipping options available at check-out)

We ship to the USA, Canada, and the United Kingdom 
(because of custom issues no other countries are allowed)




Fish Ery Forte Erythromycin is an excellent product to fight pop eye, fin and tail rot and red slime.  It fights both gram negative and gram positive bacterias.  A very good all around antibiotic.

Fish Ery Forte exerts a bactericidal action on gram positive and some gram negative bacteria. Useful for control of some common bacterial diseases of fish including aeromonas and pseudomonas genera and mysobacterial group (gill diseases, chondrococcus).

For aquarium use only. Not for human consumption.