Thomas Pets

Thomas Labs Fish Doxy - Doxycycline 100 mg 60 Capsules

$89.99 USD

~~$99.99 USD~~ $89.99 USD

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Brand Aqua Lab Thomas lab

Quantity

Thomas Labs Fish Doxy - Doxycycline 100mg (60 Capsules)

Powerful Broad-Spectrum Antibiotic for Aquarium Fish

Fish Doxy (Doxycycline) 100mg - 60 Capsules is a highly effective fish antibiotic used to treat bacterial infections in freshwater and saltwater aquariums. It is a broad-spectrum tetracycline-class antibiotic, targeting both gram-positive and gram-negative bacteria to help restore fish health quickly.

As part of the Thomas Labs Fish Antibiotics collection, Fish Doxy is an essential treatment for fin rot, gill disease, tail rot, and internal bacterial infections.

Common Fish Diseases Treated with Doxycycline

🔹 Fin Rot – Bacterial damage leading to frayed or decaying fins.
🔹 Tail Rot – Advanced infection causing severe fin and tail deterioration.
🔹 Mouth Rot – A bacterial infection leading to mouth tissue breakdown.
🔹 Gill Disease – Affects breathing and oxygen absorption, causing stress and lethargy.
🔹 Columnaris ("Cotton Wool Disease") – Causes white patches and ulcers on fish.
🔹 Internal Bacterial Infections – Can impact digestive and organ health, leading to lethargy or bloating.

Bacterial infections can spread rapidly in crowded aquariums, making early treatment critical.

Why Choose Fish Doxy (Doxycycline) from Thomas Labs?

✅ Broad-Spectrum Bacterial Treatment – Targets a wide range of harmful bacteria.
✅ Freshwater & Saltwater Safe – Designed for all aquarium environments.
✅ Easy-to-Use Capsules – Ensures accurate dosing with minimal mess.
✅ Does Not Harm Biofilters – Unlike some antibiotics, doxycycline does not disrupt beneficial bacteria.
✅ Trusted Thomas Labs Quality – Manufactured by a leading brand in fish antibiotics.
✅ Fast Shipping & Reliable Availability – Stocked and ready to ship for immediate treatment.

Instructions for Use

Dosage Guidelines

✔ 1 capsule (100mg) per 10 gallons of water.
✔ Repeat every 24 hours for 5-10 days, depending on infection severity.

Treatment Process

⚠ Remove Activated Carbon Filters before treatment to prevent medication absorption.
⚠ Perform 20-50% water changes between doses to maintain water quality.
⚠ Complete the full treatment course, even if fish show early signs of improvement.

For best results, quarantine infected fish in a separate tank to prevent the spread of bacteria.

Important Considerations

⚠ Ensure Bacterial Diagnosis - Fish Doxy only treats bacterial infections, not fungal or parasitic conditions.
⚠ Monitor Water Parameters - Maintain stable water conditions during treatment to minimize stress.
⚠ Light Sensitivity - Doxycycline is light-sensitive, so reduce tank lighting while dosing.
⚠ Consult an Aquatic Veterinarian - If symptoms persist, seek professional advice.