Fish Pen – Penicillin

Fish Pen is manufactured by Thomas Labs.  The ingredient is Penicillin and comes in 250 mg strength as Fish Pen and 500 mg strength as Fish Pen Forte.

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Manufacturer Description & Dosage Information
What is Amoxicillin used for in Humans and pets?

Fish Pen is effective treatment for pop-eyes, infected eyes, fin or tail rot, gill disease, columnaris disease, and skin ulcerations and other bacterial diseases in ornamental fish.

Product Details:

Dosage & Administration:
Add one tablet (250 mg) into aquarium for each 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 the infection, it is recommended that extended baths in the medication continue for a minimum of 5 days & for not more than 10 days. Discontinue treatment with this medication if no improvement is noted within 5 days.

Keep out of reach of children. For aquarium use only. Intended for ornamental fish and/or ornamental organisms, and not intended for use with fish for human consumption. For those allergic to penicillin, do not put hand in tank for three days after treatment.

Ingredients:250 mg Penicillin

Storage: Store at controlled room temperature of 59°-86°F.

Available Sizes:

30 count, 60 count, 100 count

What is Penicillin used for in Pets?

What is Penicillin used for in Humans?