Fish Doxy 100mg – 30 Capsules provides reliable antibacterial protection for aquarium and ornamental fish suffering from bacterial infections. Each capsule contains pharmaceutical-grade Doxycycline Hyclate, a broad-spectrum antibiotic that targets both gram-positive and gram-negative bacteria, helping to stop infections such as fin rot, tail rot, columnaris, and septicemia before they spread.
This 30-count bottle is ideal for smaller aquariums or single treatment cycles, offering precise dosing and easy administration. Fish Doxy dissolves quickly and evenly in aquarium water, ensuring rapid absorption and effective results with minimal impact on beneficial bacteria.
Key Benefits
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Broad-Spectrum Protection: Effective against a wide range of aquatic bacterial pathogens, including Aeromonas and Pseudomonas species.
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Rapid Dissolution: Capsules disperse quickly in water for fast absorption and consistent treatment.
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Aquarium Safe: Gentle on tank biofiltration and aquatic plants, maintaining a balanced environment.
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Targeted Recovery: Helps reduce symptoms such as frayed fins, sores, and respiratory distress.
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Convenient 30-Count Size: Perfect for hobbyists or single-tank treatment programs.
Directions for Use
Dosage: Add one 100mg capsule per 10 gallons of water.
Treatment Duration: Repeat every 24 hours for 5–10 days.
Maintenance: Perform partial water changes between doses to maintain water quality.
Use in a separate hospital tank when possible to prevent reinfection.
Active Ingredient
Doxycycline Hyclate – 100mg per capsule
A broad-spectrum antibiotic that inhibits bacterial protein synthesis, stopping infection growth and promoting full recovery.
Storage & Safety
Store in a cool, dry place (59°–86°F / 15°–30°C).
Keep tightly sealed and away from moisture or direct sunlight.
For aquarium use only – Not for human consumption.
Keep out of reach of children and pets.
