Thomas Labs Fish Pen - Penicillin 500 mg Tablets (30 Count)

Thomas Labs Fish Pen - Penicillin 500 mg Tablets (30 Count)

Effective Antibiotic Treatment for Bacterial Infections in Fish

Thomas Labs Fish Pen (Penicillin) 500 mg Tablets provide a broad-spectrum antibiotic solution for treating common bacterial infections in aquarium fish. Designed specifically for freshwater and saltwater fish, this powerful penicillin-based treatment is effective against fin rot, tail rot, and bacterial skin ulcers.

At Thomas Labs Pet, we provide premium-quality fish antibiotics to ensure the best care for your aquatic pets.

Key Benefits of Fish Pen (Penicillin 500mg)

✅ Broad-Spectrum Bacterial Treatment – Effectively fights gram-positive bacterial infections.
✅ High-Potency Formula – Each tablet contains 500 mg of penicillin for fast action.
✅ Safe for Aquatic Use – Designed for both freshwater and saltwater aquariums.
✅ Trusted Manufacturer – Produced by Thomas Labs, a leader in fish antibiotics.
✅ Easy-to-Use – Quickly dissolves in aquarium water for efficient absorption.

For more antibiotic options, visit our full fish antibiotics collection.

Common Fish Diseases Treated with Fish Pen (Penicillin)

• Fin Rot – A bacterial infection that causes deterioration of fins.
• Tail Rot – Similar to fin rot but affects the tail specifically.
• Skin Ulcers – Open wounds caused by bacterial infections.
• Columnaris (Cotton Wool Disease) – Bacterial infection leading to white fuzzy patches on fish.
• Bacterial Gill Disease – Causes difficulty breathing and gill inflammation.

For more fish medications, explore our fish medication collection.

How to Use Fish Pen (Penicillin) 500 mg Tablets

Dosage & Administration

• Add 1 tablet (500mg) per 20 gallons of aquarium water.
• Repeat every 24 hours for 5-10 days, depending on the severity of the infection.
• Remove activated carbon filters during treatment to ensure full effectiveness.
• Perform partial water changes (20-25%) between doses to maintain water quality.

⚠ Caution:

• Not for human consumption.
• Store in a cool, dry place away from direct sunlight.
• If symptoms persist, consult an aquatic veterinarian.

For detailed instructions, refer to our Fish Antibiotics Guide.

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🔹 Fish Sulfa Forte – Sulfamethoxazole & Trimethoprim (30 Count)

Explore our complete range of fish antibiotics.

Why Choose Fish Penicillin (Fish Pen 500mg) from Thomas Labs Pet?

• Trusted Manufacturer – All Thomas Labs products meet strict quality standards.
• Convenient Online Purchasing – Get your fish medications delivered fast.
• Comprehensive Fish Medication Selection – Choose from various antibiotics to treat different fish diseases.

Tags

fish antibiotics, penicillin for fish, Thomas Labs, fish medication, bacterial infections in fish, fish penicillin, aquarium antibiotics, treating fin rot.