Fish Pen (Penicillin) 250mg 100 ct

Fish Pen (Penicillin) 250mg 100 ct
List Price: $31.99
Sale Price: $24.99
Code: fispen100
This item is currently backordered and is unavailable for purchase.

Fish Pen (Penicillin) is an antibiotic that exerts a bactericidal action on gram-positive and some gram-negative bacteria in fish. It is useful for control of some common bacterial diseases in fish, including caused by bacteria such as fin and tail rot and flexibacter infections.


Aquarium and Ornamental Fish


Store in a cool dry place

How to Use

Add 1 tablet (250 mg) into aquarium for every 10 gallons of water to be treated. Repeat in 24 hours. It is suggested that a partial water change be made between treatments. While duration of treatment depends on type and severity of infection, it is recommended that extended medication baths continue for a minimum of 5 days but not more than 10 days, Discontinue treatment if no improvement is noted within 5 days.


For aquarium and ornamental fish only. Not for human use. This product should not be given to fish intended for human consumption. Keep out of the reach of children and animals. In case of accidental overdose, contact a health professional immediately. Keep container tightly closed and in a cool dry place.