100 count Fish Pen, 250 mg

Item #TLA4


100 count Fish Pen, 250 mg

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Fish Pen Forte (Penicillin) exerts a bactericidal action on gram positive and some gram negative bacteria. Each tablet contains 250 mg Penicillin. 100 count. Read More

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100 count Fish Pen, 250 mg

Penicillin exerts a bactericidal action on gram-positive and some gram-negative bacteria. Useful for the control of some common bacterial diseases of fish including fin and tail rot and flexibacter infections.

Each tablet contains: Penicillin 250mg active.

Directions: Add one tablet into aquarium for every 20 gallons of water to be treated. Repeat in 24 hours. It is suggested that a partial water change is made between treatments. While the duration of treatment depends on type and severity of infection, it is recommended that extended medication baths continue for a minimum of 5 days and not for more than 10 days. Discontinue treatment if no improvement is noted within 5 days.

Caution: For aquarium and ornamental fish only. Not for human use. Keep out of the reach of children. Keep container tightly closed and in a cool dry place. Not to be given to fish intended for food use.


  • Brand: Thomas Labs
  • Type: Antibiotics
  • Size: 100 Count
  • Ingredient: Penicillin

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