Fix Doxy 100 (Doxycycline) 100mg – 30 Tablets
Fix Doxy 100 contains 100mg of Doxycycline per tablet and is a versatile antibiotic for both aquarium fish and pet birds. Doxycycline is a tetracycline-class antibiotic renowned for treating a broad range of infections. In fish, it’s effective against gram-positive and some gram-negative bacteria that cause fin rot, tail rot, and other aquatic infections. In birds, this same active ingredient is known as “Bird Biotic” (commonly used for respiratory infections in pigeons, parrots, etc.). Fix Doxy 100 offers a convenient, over-the-counter solution for bacterial issues, packaged in 30 easy-to-use tablets. Whether you’re addressing a cloudy eye in a goldfish or a sneezing cockatiel, Fix Doxy provides a trusted treatment without needing a vet prescription.
Key Benefits:
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Broad-Spectrum Antibiotic: Doxycycline is effective against many common pathogens. In fish, it helps cure fin and tail rot, mouth infections, and red pest (open sores). In birds, it’s often used for respiratory infections like ornithosis, chlamydophila (pneumonia), and other bacterial diseases.
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Dual Use – Fish & Birds: One of the few antibiotics suitable for both aquarium fish and pet birds. This makes it ideal for hobbyists who keep multiple types of pets. (Dose adjusts by species – see directions.)
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Easy Administration: 100mg tablets can be easily divided or dissolved. For fish, typically added to aquarium water; for birds, often dissolved in drinking water. The tablets are uncoated and dissolve relatively quickly, making dosing straightforward.
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No Prescription Required: Fix Doxy 100 is an OTC medication – accessible for immediate use. It’s equivalent in content to the popular Bird Biotic (Doxycycline) and similar aquarium doxycycline products, but you can obtain it hassle-free.
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Gentle & Effective: Doxycycline tends to be well-tolerated. It’s less harsh on beneficial bacteria in a fish tank compared to some antibiotics (though still use in a hospital tank if possible). Birds generally tolerate it well in water, making treatment stress-free.
Dosage & Directions: For Fish: Use one 100mg tablet per 5–10 gallons of aquarium water every 24 hours. (Doxycycline is usually dosed at 5-10 mg/L). Dissolve the tablet in a cup of tank water first, then pour evenly into the aquarium. Treat for 7–10 days, with 25% water changes before each re-dose to maintain water quality. As with any antibiotic, remove activated carbon and consider treating in a separate hospital tank to preserve your main tank’s biofilter. For Birds: Dissolve one tablet (100mg) into 8 ounces of drinking water. Provide this medicated water as the sole source of water for your bird, refreshing it daily. Continue for 7–10 days. (Alternatively, a vet may prescribe dosing by weight; 25–50 mg/kg orally – but the water method is a general guideline for flock treatment.) Ensure birds are drinking well – you may sweeten the water slightly with juice to encourage intake if needed. Important: Use only plain water with the medication (no vitamins or supplements in the same water).
Additional Details:
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Use Cases – Fish: Great for treating columnaris (Flexibacter) in fish, which causes frayed fins and lesions, as Doxycycline has shown effectiveness against it. Also used for aeromonas and Pseudomonas infections (which can cause ulcers or dropsy-like symptoms). While not the first line for every infection, it’s broad enough to try when exact bacteria aren’t identified.
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Use Cases – Birds: Commonly used in the pigeon hobby to treat and prevent respiratory diseases (like pigeon cholera or parrot fever). Doxycycline in birds can help with sinus infections, air sac infections, and certain systemic bacterial infections. It’s often the treatment of choice for Chlamydia psittaci (psittacosis) in birds.
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Combination Therapy: Doxycycline (tetracycline class) should not be used with calcium supplements or in very hard water, as calcium can bind and inactivate it. If using in aquariums, check that your water isn’t overly hard or full of calcium. Do not combine with other meds unless directed (for example, avoid using with erythromycin simultaneously).
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Precautions: As with any antibiotic, use the full course even if symptoms improve after a few days – this prevents relapse or resistance. Do not use in fish tanks with sensitive invertebrates. In birds, if no improvement is seen in 5 days, consulting an avian vet is recommended.
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Quality Assurance: Manufactured under strict GMP standards – tablets are consistent and accurate in dosage. Each tablet can be split (they are scored) if precise smaller dosing is needed. The product is labeled for fish and birds (for ornamental and companion animals only).
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Shelf Life & Storage: Store tablets in a dry place away from direct light. Keep the desiccant packet inside the bottle (if included) to reduce moisture. Doxycycline can be light-sensitive, so amber bottle provided – keep tablets in this original container. Shelf life is typically 2 years; check your bottle’s date.
Ensure you’re ready to help both your fish and feathered friends at the first sign of infection – add Fix Doxy 100 to your pet care arsenal for a reliable, multi-purpose antibiotic solution.
FAQ:
Q: What fish diseases can Fix Doxy 100 treat?
A: Fix Doxy 100 can treat a variety of bacterial fish diseases, especially those involving fin deterioration, body sores, or fungal-like symptoms that are actually bacterial. It’s effective for fin rot, tail rot, columnaris (cotton wool disease), and some cases of dropsy caused by bacteria (manifesting as scale pineconing). It’s also used for secondary infections from wounds. While Doxycycline is broad, if a specific infection like true fungal infection or parasitic issue is present, a different medication would be needed (antifungal, antiparasitic respectively).
Q: Can I use Fix Doxy 100 for my bird? If so, how?
A: Yes, Fix Doxy 100 is suitable for pet birds (it’s essentially the same as Bird Biotic which is Doxycycline 100mg). The common method is to dissolve one tablet in 8 oz of the bird’s drinking water daily. Ensure the bird drinks that water (remove other water sources). Use fresh medicated water each day for 7–10 days. This is often used for medium-sized birds (e.g., pigeons, parrots). For very small birds (finches, budgies), the dose might be too high; in those cases, using a half tablet in 8 oz water or consulting a vet for exact dosing is wise. Always monitor your bird – if they stop drinking due to taste, you might need to adjust how it’s given (veterinarians can also prescribe doxycycline to be given directly by syringe in precise doses for smaller birds).
Q: My fish tank water turned slightly yellow after using Fix Doxy – is that normal?
A: A slight yellow or tan discoloration can happen with Doxycycline in water, because the medication itself is yellowish. This is normal and shows the drug is in the water. It’s nothing to worry about. After finishing treatment, doing a series of water changes and adding activated carbon to your filter will clear up the coloration.
Q: Should I feed my fish during treatment?
A: Yes, you should continue to feed your fish normally (a healthy diet can help them recover). However, if a fish has a severe infection, it might not eat much – focus on maintaining good water quality and reducing stress. Remove any uneaten food promptly, as you want to keep the water as clean as possible during medication. In birds, continue their normal diet while the antibiotic is in the drinking water (you might see them eat a bit less if they drink less, so monitor food intake and try offering favorite foods to keep them nourished).
Q: Is Doxycycline better for fish or birds compared to other antibiotics?
A: It’s not about “better,” but about the appropriate spectrum. Doxycycline is very useful for certain bacteria: for example, it penetrates well into tissues, making it good for internal infections or those difficult to reach (like in bird respiratory tracts or deep in fish tissue). Some other antibiotics (like amoxicillin or erythromycin) might not work on some of the atypical bacteria Doxycycline can hit (like chlamydial organisms in birds or certain flexibacteria in fish). On the other hand, for something like a straightforward columnaris outbreak, doxycycline can be effective but so can others. It’s a great general antibiotic to try if you’re unsure of the bacteria, and it’s known to be one of the go-to treatments for bird illnesses. Each antibiotic has a range – Doxy covers a broad one, which is why it’s in many hobbyists’ toolkits.
Q: Do I need to do anything special in my aquarium while using this (like light adjustments)?
A: Doxycycline can be inactivated by strong light over time, so it’s often recommended to dim the aquarium lights or at least avoid direct sunlight on the tank during treatment. It’s not extremely light-sensitive in a practical sense (your tank lights for 8 hours won’t destroy the treatment), but minimizing UV exposure helps. Definitely turn off any UV sterilizer. Other than that, maintain normal aeration and filtration (minus carbon). After finishing, do a good water change and filter clean.
Fine PetHealth Group hopes that you would be satisfied when you received your order. However, we understand that there would be some orders that need to be returned or exchanged. Within 30 days after receiving your order, email our customer service to explain the reason for the return/exchange and to request a Return Authorization (RA) number (Please note our Special Restrictions section for return exclusions.)
Therefore, we have streamlined our return process in order to better facilitate your refund and/or exchange. We will process refunds or exchanges according to the guidelines below.
*There are no refunds for antibiotics.
Disclaimer:
Address or other customer error: If a package is returned intact to Fine Pet Health Group due to an address error (or any other error) made by the customer, the customer will be responsible for any shipping fees incurred. A refund will be issued for the merchandise.
Violation of laws: If a package is returned to Fine Pet Health Group due to the violation of a country's laws, the customer will e responsible for any fees (such as quarantine, warehousing, or shipping) billed to Fine PetHealth Group. A refund will be issued to the customer, minus the freight.
Customer refusal: If a customer refuses a package because of additional fees (taxes or for any other reason), Fine Pet Health Group will issue a refund for the customer only, minus the freight and taxes, upon receipt of the returned package and inspection that all originally shipped goods have been returned. The customer will be responsible for any shipping fees incurred.
Custom seizure: If a package has been halted/seized by customs or abandoned by the shipping carrier, the customer will not receive credit for the order. If and when Fine Pet Health Group receives the returned package intact, a refund will be issued to the customer only, minus the freight and taxes.
Lost packages: Lost packages must be reported to Fine Pet Health Group within 30 days from the date of shipment confirmation. Fine Pet Health Group cannot be held liable for refunds or replacements for more than one calendar month. For any returned package: For any order that is returned to Fine PetHealth Group, if the return shipping cost is greater than the cost of goods ordered, Fine Pet Health Group will instruct the carrier to abandon the package. In such case, the customer will not receive a refund for the order, but will not be liable for the return shipping cost.
Destroyed or unreturned packages: If a package has been destroyed by custom or the carrier, or has otherwise not been returned to Fine PetHealth Group, we cannot issue a refund for the order.
Any duties or taxes that may apply are customer's responsibility.
Redelivery Fee & Missed Scheduled Delivery: If reshipment is requested by the Customer due to Returned to Sender, refusal of shipment, or missed scheduled delivery, you will be responsible for S&H unless it is due to company or Carrier error.
Product Defect, Damaged, or Wrong Shipment: May be eligible for a full refund of the merchandise and S&H if confirmed defective, damaged, or the wrong item is shipped. Please contact us of delivery for an immediate resolution. To ensure proper processing of the claim and credit for your return shipping cost, you must attach the completed RMA form with your return. All defective item(s) claims are subject to inspection and confirmation. For 'defective' claims, describe the defect and indicate if you would like a replacement by commenting as such on the notes section.
Upon inspection, if the item(s) is deemed defective or the wrong item(s) shipped, an exact replacement, if available, will be shipped to you free of charge. If an exact replacement is out of stock, we will process a full refund back to the same payment method used on the original order.
Damaged or Missing Items: Claims for damaged items or discrepancies (for example missing items in your order) should be submitted of the merchandise receipt. Please retain all packaging material in case an inspection is necessary. In the case of shipping damages, we may contact the carrier.
Free Shipping Offers: For 'free shipping' packages, the shipping costs will be assessed and deducted from the final reimbursement of refunds and store credits. Any shipping cost that you incur to return the product will not be refunded unless it is a company error. Non-refundable shipping applies to both domestic and international shipping.
*Special Restrictions*
We will not charge a restocking fee for an exchange, but customers may have to bear the shipping fee. For refunds, the shipping fee will be deducted from your refund. But if the error is our fault, you will get a full refund. After you exchange or return request has been confirmed, you will be given a return address to send the items back to us.
If you want to exchange or return a product, please email pictures of the item first. You may make an even exchange for the same identical item, or you may exchange it for a different style and pay the price difference.
We can not accept items that are not in original condition. The returned items must be unaltered, unworn, undamaged, and all tags and packaging must be included and attached.
Items that have been opened or used, unless damaged or defective, cannot be returned.
Return process:
Step 1:
Within 30 days after receiving your order, email our customer service to explain the reason for the return/exchange and to request a Return Authorization (RA) number.
Only those returned packages that include an RA number will be accepted. We have every right to refuse to sign for the packages if you send it back without our authorization! Other, you will be responsible for all the losses arising.
*Please note that all returns must be accompanied by a valid Return Authorization (RA) number, and they must be returned within 14 days of receiving your RA number.
Failure to include the RA number or returning items after the 14-day period will result in the denial of a refund.
Step 2:
Prepare returned items in secure packaging, including the original order invoice with the returns section completed.
Step 3:
Ship returned products via insured or traceable method of shipment to the return address that we will provide to you. And when you ship out the items, please email the tracking number to us also. Upon receipt of your returned items, we will further inspect the items and your refund will be processed. All refunds will be automatically applied to your credit card or original method of payment within 7 to 10 business days.
Refund (if applicable)
After receiving and verifying your return, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, your refund will be processed and the credit will be automatically credited to your credit card or original payment method within a certain number of days.
Late or missing refunds (if applicable)
If you have not received a refund, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially published.
Next, contact your bank. Often there is some processing time before a refund is sent.
If you have done all this but have not yet received a refund, please contact us at
support@finepethealth.com
Sale of goods (if applicable)
Refunds can only be made at regular prices, unfortunately, the goods cannot be returned.
Exchange (if applicable)
We only replace products if they are defective or damaged. If you need to exchange it for the same product, send us an email at: support@finepethealth.com
and send your product to Our warehouse:
Fine PetHealth Group
1796 STATE RTE 14
WEST PLAINS MO 65775
Presents
If the product was marked as a gift upon purchase and delivered directly to you, you will receive a gift credit in the amount of your return. As soon as the returned product is received, you will be sent a gift certificate.
If upon purchase the item was not marked as a gift, or the donor received an order that was sent to you later, we will send a refund to the donor and he will know about your return.
Shipping
To return a product, send it by mail to Our warehouse:
Fine PetHealth Group
1796 STATE RTE 14
WEST PLAINS MO 65775
You are responsible for paying your own shipping costs to return your item. Shipping cost is not refundable. If you receive a refund, the refund will be deducted from your refund.
Depending on where you live, the time it takes for your exchanged product to reach you may vary.
If you send goods you should use the delivery tracking service or purchase shipping insurance. We do not guarantee that we will receive your returned item.
Therefore, we have streamlined our return process in order to better facilitate your refund and/or exchange. We will process refunds or exchanges according to the guidelines below.
*There are no refunds for antibiotics.
Disclaimer:
Address or other customer error: If a package is returned intact to Fine Pet Health Group due to address error (or any other error) made by the customer, the customer will be responsible for any shipping fees incurred. A refund will be issued for merchandise.
Violation of laws: If a package is returned to Fine Pet Health Group due to the violation of a country's laws, the customer will e responsible for any fees (such as quarantine, warehousing or shipping) billed to Fine Pet Health Group . A refund will be issued to the customer, minus the freight.
Customer refusal: If a customer refuses a package because of additional fees (taxes or for any other reason), Fine Pet Health Group will issue a refund for the customer only, minus the freight and taxes, upon receipt of the returned package and inspection that all originally shipped goods have been returned. The customer will be responsible for any shipping fees incurred.
Custom seizure: If a package has been halted/seized by customs or abandoned by the shipping carrier, the customer will not receive credit for the order. If and when Fine Pet Health Group receives the returned package intact, a refund will be issued to the customer only, minus the freight and taxes.
Lost packages: Lost packages must be reported to Fine Pet Health Group within 30 days from the date of shipment confirmation. Fine Pet Health Group cannot be held liable for refunds or replacements for more than one calendar month. For any returned package: For any order that is returned to Fine Pet Health Group , if return shipping cost is greater than the cost of good ordered, Fine Pet Health Group will instruct the carrier to abandon the package. In such case, the customer will not receive a refund for the order, but will not be liable for the return shipping cost.
Destroyed or unreturned packages: If a package has been destroyed by custom or the carrier, or has otherwise not been returned to Fine Pet Health Group , we cannot issue a refund for the order.
Any duties or taxes that may apply are customer's responsibility.
Redelivery Fee & Missed Scheduled Delivery: If reshipment is requested by the Customer due to Returned to Sender, refusal of shipment or missed scheduled delivery, you will be responsible for S&H unless it is due to company or Carrier error.
Product Defect, Damaged, or Wrong Shipment: May be eligible for a full refund of the merchandise and S&H if confirmed defective, damaged or wrong item is shipped. Please contact us of delivery for an immediate resolution. To ensure proper processing of claim and credit for your return shipping cost, you must attach the completed RMA form with your return. All defective item(s) claims are subject to inspection and confirmation. For 'defective' claims, describe the defect and indicate if you would like a replacement by commenting as such on the notes section.
Upon inspection, if item(s) is deemed defective or wrong item(s) shipped, an exact replacement, if available, will be shipped to you free of charge. If an exact replacement is out of stock, we will process a full refund back to the same payment method used on the original order.
Damaged or Missing Items: Claims for damaged items or discrepancies (for example: missing items in your order) should be submitted of merchandise receipt. Please retain all packaging material in case an inspection is necessary. In the case of shipping damages, we may contact the carrier.
Free Shipping Offers: For 'free shipping' packages, shipping cost will be assessed and deducted from final reimbursement of refunds and store credits. Any shipping cost that you incur to return the product will not be refunded unless it is a company error. Non-refundable shipping applies to both domestic and international shipping.
*Special Restrictions*
We will not charge a restocking fee for an exchange, but customers may have to bear the shipping fee. For refunds, the shipping fee will be deducted from your refund. But if the error is our fault, you will get a full refund. After you exchange or return request has been confirmed, you will be given a return address to send the items back to us.
If you want to exchange or return a product, please email pictures of the item first. You may make an even exchange for the same identical item, or you may exchange it for a different style and pay the price difference.
We can not accept items that are not in original condition. The returned items must be unaltered, unworn, undamaged, and all tags and packaging must be included and attached.
Items that have been opened or used, unless damaged or defective, cannot be returned.
Return process:
Step 1:
Within 30 days after receiving your order, email our customer service to explain the reason for the return/exchange and to request a Return Authorization (RA) number.
Only those returned packages that include an RA number will be accepted. We have every right to refuse to sign for the packages if you send it back without our authorization! Other, you will be responsible for all the losses arising.
Step 2:
Prepare returned items in secure packaging, including the original order invoice with the returns section completed.
Step 3:
Ship returned products via insured or traceable method of shipment to the return address that we will provide to you. And when you ship out the items, please email the tracking number to us also. Upon receipt of your returned items, we will further inspect the items and your refund will be processed. All refunds will be automatically applied to your credit card or original method of payment within 7 to 10 business days.
Refund (if applicable)
After receiving and verifying your return, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, your refund will be processed and the credit will be automatically credited to your credit card or original payment method within a certain number of days.
Late or missing refunds (if applicable)
If you have not received a refund, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially published.
Next, contact your bank. Often there is some processing time before a refund is sent.
If you have done all this but have not yet received a refund, please contact us at
support@finepethealth.com
Sale of goods (if applicable)
Refunds can only be made at regular prices, unfortunately, the goods cannot be returned.
Exchange (if applicable)
We only replace products if they are defective or damaged. If you need to exchange it for the same product, send us an email at: support@finepethealth.com
and send your product to Our warehouse:
Fine PetHealth Group
1796 STATE RTE 14
WEST PLAINS MO 65775
Presents
If the product was marked as a gift upon purchase and delivered directly to you, you will receive a gift credit in the amount of your return. As soon as the returned product is received, you will be sent a gift certificate.
If upon purchase the item was not marked as a gift, or the donor received an order that was sent to you later, we will send a refund to the donor and he will know about your return.
Shipping
To return a product, send it by mail to Our warehouse:
Fine PetHealth Group
1796 STATE RTE 14
WEST PLAINS MO 65775
You are responsible for paying your own shipping costs to return your item. Shipping cost is not refundable. If you receive a refund, the refund will be deducted from your refund.
Depending on where you live, the time it takes for your exchanged product to reach you may vary.
If you send goods you should use the delivery tracking service or purchase shipping insurance. We do not guarantee that we will receive your returned item.
Standard Shipping is free USA on all orders. All orders have 3-7 days of domestic shipping at US locations only.
We ship all orders the same day or the next business day. We usually ship via USPS, UPS, or FedEx depending on the quantity and weight of the ordered item. Once an order is shipped, we will email you a tracking number. We ship to all USA states except Puerto Rico, Hawaii, Alaska, APO/FPO/DPO. Please make sure you enter the correct shipping address at the checkout. We will not make any changes to the shipping address once you place the order. If any shipment is returned due to an error in the shipping address provided to us or due to the package not being claimed by the receiver, we will deduct $6.99 from the purchase price prior to issuing the refund.
Standart Shipping:
Country USA
Shipping Cost Free
Each additional item Free
Delivery terms 3-7 days
Express Shipping:
Country USA
Shipping Cost $13.95 USD
Each additional item Free
Delivery terms 1-2 days
WHEN WILL I RECEIVE MY ORDER?
Orders are shipped out directly from any of our domestic warehouses and they will do everything they can to get you your order as fast as they can! Due to the popularity of our offers, please allow an estimated 3-7 days for your order to arrive at the Shipping Address. Please note, that due to the extreme popularity of our offers, these are only estimates.
WHAT HAPPENS IF MY ORDER GETS STUCK OR LOST IN THE MAIL?
Please note that we are not responsible for any lost or stuck mail during the shipping process. In such cases, customers should contact the carrier directly to resolve the issue. We recommend utilizing tracking information and reporting incidents promptly. Our customer support team is available to provide carrier contact information and support.
CAN I CANCEL MY ORDER?
Cancellation of an order for a full refund is ONLY possible if canceled before the item has been shipped (tracking number provided). We cannot process claims, refunds, or additional requests once the package is in transit with the carrier. You have 30 minutes to cancel your order.
Still have questions? Please write to us by e-mail: support@finepethealth.com or use "Chat with us" button.