{"product_id":"fix-doxy-doxycycline-100mg-30-tablets","title":"Fix Doxy (Fish Doxy) Doxycycline 100mg 30\/60ct Fish \u0026 Bird Antibiotic","description":"\u003cdiv class=\"fph-product-copy\"\u003e\n\u003c!-- ========== OVERVIEW ========== --\u003e\n\u003csection class=\"fph-section\" id=\"overview\"\u003e\n\u003ch2\u003eFix Doxy (Fish Doxy) Doxycycline Tablets - 100 mg\u003c\/h2\u003e\n\u003cnav class=\"fph-toc\" aria-label=\"On this page\"\u003e\u003cspan class=\"fph-toc-label\"\u003eOn this page:\u003c\/span\u003e \u003ca href=\"#overview\"\u003eOverview\u003c\/a\u003e \u003ca href=\"#fish-doxy-vs-fix-doxy\"\u003eFish Doxy vs Fix Doxy\u003c\/a\u003e \u003ca href=\"#benefits\"\u003eBenefits\u003c\/a\u003e \u003ca href=\"#dosage\"\u003eDosage\u003c\/a\u003e \u003ca href=\"#mechanism\"\u003eHow It Works\u003c\/a\u003e \u003ca href=\"#side-effects\"\u003eSide Effects\u003c\/a\u003e \u003ca href=\"#shipping\"\u003eShipping\u003c\/a\u003e \u003ca href=\"#faq\"\u003eFAQ\u003c\/a\u003e\u003c\/nav\u003e\n\u003cp\u003e\u003cstrong\u003eFix Doxy (Fish Doxy) Doxycycline 100mg\u003c\/strong\u003e is a broad-spectrum doxycycline tablet for ornamental aquarium fish and non-food pet birds, manufactured by Aqua Soma Labs. Hobbyists know it as a reliable online replacement for discontinued Thomas Labs Fish Doxy, Aqua Doxy, and older Bird Biotic products.\u003c\/p\u003e\n\u003cp\u003eAs an over-the-counter (OTC) part of the Aqua Soma Labs Fix range of aquarium fish antibiotics, this fish and bird antibiotic helps manage common problems such as fin and tail rot, columnaris (often seen as cotton wool disease), bacterial hemorrhagic septicemia, and other internal bacterial infections caused by Gram-positive and Gram-negative bacteria in freshwater and saltwater aquariums. It also reliably supports racing pigeons and other pet birds during respiratory infections, mycoplasmosis (mycoplasma), or suspected chlamydiosis (also known as parrot fever, psittacosis, or ornithosis).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoxycycline\u003c\/strong\u003e is a broad-spectrum tetracycline antibiotic that works by inhibiting bacterial protein synthesis, limiting the growth of susceptible bacteria in the gills, skin and respiratory tract.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFix Doxy\u003c\/strong\u003e from Aqua Soma Labs supplies \u003cstrong\u003e100 mg doxycycline\u003c\/strong\u003e per tablet and comes in bottles of \u003cstrong\u003e30 or 60 tablets\u003c\/strong\u003e with fresh expiration dates, giving hobbyists a reliable option when they need doxycycline for birds or a trusted fish doxycycline product to buy online.\u003c\/p\u003e\n\u003cp\u003eUse Fix Doxy when you notice signs of bacterial stress such as clamped or frayed fins, slime disease, mouth fungus \/ mouth rot, red or cloudy patches on the body, labored breathing, sneezing and wheezing, nasal discharge or a persistent loss of appetite. Addressing potential bacterial issues early with doxycycline, together with good water quality and advice from an aquatic or avian professional when available, helps your fish and birds maintain a stable, healthy aquarium or aviary.\u003c\/p\u003e\n\u003cp class=\"fph-tip\"\u003e\u003cstrong\u003eOrder online and ship directly from our U.S. warehouse.\u003c\/strong\u003e Fix Doxy doxycycline 100 mg tablets are available to buy online with same-day dispatch on orders placed before 1:30 p.m. CT, Monday through Friday.\u003c\/p\u003e\n\u003cp class=\"fph-alert\"\u003e\u003cstrong\u003eImportant Notice:\u003c\/strong\u003e This product is \u003cstrong\u003eintended for aquarium and ornamental fish and pet birds only\u003c\/strong\u003e. It is \u003cstrong\u003enot for human consumption\u003c\/strong\u003e or for \u003cstrong\u003eanimals used for food\u003c\/strong\u003e. We \u003cstrong\u003edo not sell or recommend this product for human use\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003c!-- ========== FISH DOXY vs FIX DOXY ========== --\u003e\n\u003csection class=\"fph-section\" id=\"fish-doxy-vs-fix-doxy\"\u003e\n\u003ch2\u003eFish Doxy vs Fix Doxy: What Changed?\u003c\/h2\u003e\n\u003cp\u003eIf you used to buy Fish Doxy, Aqua Doxy, or Bird Biotic from Thomas Labs, here is what stayed the same and what is different with Fix Doxy from Aqua Soma Labs.\u003c\/p\u003e\n\u003cdiv class=\"fph-info-grid\"\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eSame Active Ingredient\u003c\/strong\u003e\u003cbr\u003eFix Doxy delivers the same \u003cstrong\u003edoxycycline hyclate 100 mg\u003c\/strong\u003e per tablet, the same broad-spectrum tetracycline class used in the original Fish Doxy and Bird Biotic products.\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eNew Manufacturer\u003c\/strong\u003e\u003cbr\u003eFix Doxy is made by \u003cstrong\u003eAqua Soma Labs\u003c\/strong\u003e, replacing Thomas Labs, which discontinued its Fish Doxy and Bird Biotic lines.\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eSame Tablet Form\u003c\/strong\u003e\u003cbr\u003e100 mg tablets with the same dosing style (1 tablet per 15 gallons), so switching from Fish Doxy to Fix Doxy requires no changes to your routine.\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eUpdated Packaging \u0026amp; Labeling\u003c\/strong\u003e\u003cbr\u003eNew bottle design and labeling under the Fix brand, but the same pharmaceutical-grade quality and fresh expiration dates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003c!-- ========== BENEFITS ========== --\u003e\n\u003csection class=\"fph-section\" id=\"benefits\"\u003e\n\u003ch2\u003eBenefits of Fix Doxy for Fish \u0026amp; Birds\u003c\/h2\u003e\n\u003cul class=\"fph-card-list\"\u003e\n\u003cli\u003e\n\u003ch3\u003eBroad-Spectrum Doxycycline\u003c\/h3\u003e\n\u003cp\u003eHelps manage common bacterial problems such as fin and tail rot, columnaris, gill disease, septicemia, internal bacterial infections, and avian respiratory infections caused by susceptible Gram-positive and Gram-negative bacteria in both freshwater and saltwater aquariums.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eNo Veterinary Prescription Required\u003c\/h3\u003e\n\u003cp\u003eFix Doxy 100 mg is sold as an over-the-counter (OTC) fish and bird antibiotic, so you can order it online without a veterinary prescription in most regions. If you are unsure about local regulations, check with a veterinarian or your local authority.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eOne Solution for Fish \u0026amp; Birds\u003c\/h3\u003e\n\u003cp\u003eFormulated for ornamental aquarium fish and non-food pet birds, so you can rely on a single doxycycline product for both tanks and aviaries, including individual dosing or whole flock treatment when appropriate.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eTablet Form for Consistent Dosing\u003c\/h3\u003e\n\u003cp\u003eEach tablet delivers a fixed \u003cstrong\u003e100 mg doxycycline\u003c\/strong\u003e dose, making it easier to follow dosing charts and repeat courses accurately across different tank volumes or bird sizes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eFlexible Use in Tanks \u0026amp; Feed\u003c\/h3\u003e\n\u003cp\u003eTablets are water-soluble and easy to crush, meaning they can be dissolved for use in hospital or quarantine tanks, or mixed with food or drinking water as directed, giving you options when dosing sensitive fish or birds.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eAvailable in 30-Count and 60-Count Bottles\u003c\/h3\u003e\n\u003cp\u003eChoose a 30-count bottle for a single treatment course or a 60-count bottle for larger tanks, multiple birds, or repeat treatments, so you always have doxycycline on hand when needed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eTrusted Fish Doxy \u0026amp; Bird Biotic Replacement\u003c\/h3\u003e\n\u003cp\u003eFix Doxy is a direct replacement for discontinued Fish Doxy (Thomas Labs), Aqua Doxy, and Bird Biotic products, delivering the same doxycycline hyclate 100 mg per tablet that hobbyists and breeders have relied on for years.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003c!-- ========== DOSAGE ========== --\u003e\n\u003csection class=\"fph-section\" id=\"dosage\"\u003e\n\u003ch2\u003eDosage Guidelines \u0026amp; Instructions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDirections for Use:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col class=\"fph-step-list\"\u003e\n\u003cli\u003e\n\u003ch3\u003ePrepare a Separate Treatment Area\u003c\/h3\u003e\n\u003cp\u003eFor fish, set up a hospital or quarantine tank with clean, dechlorinated water so you can treat without disturbing the main display tank or its biofilter. Remove activated carbon, resins and UV sterilizers during treatment, as they can strip doxycycline from the water.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eCalculate and Give the Dose\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFish:\u003c\/strong\u003e Check the dosing instructions on your Fix Doxy bottle. Label directions for 100 mg tablets typically call for \u003cstrong\u003e1 tablet (100 mg) per 15 gallons (57 L) of water\u003c\/strong\u003e, repeated every 24 hours for several days. Pre-dissolve the tablet in a small cup of tank water, then add it evenly around the treatment tank.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBirds:\u003c\/strong\u003e For companion birds, dosing is based on body weight or medicated drinking-water volume. Crush the tablet and mix with soft food or a measured amount of drinking water \u003cstrong\u003eonly as directed\u003c\/strong\u003e on the packaging or by an avian veterinarian, making sure the bird receives the full intended dose.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eMonitor Progress and Water Quality\u003c\/h3\u003e\n\u003cp\u003eWatch appetite, breathing, activity level and fin or feather condition every day. If symptoms worsen or no improvement is seen after several days, contact a veterinarian. For fish, perform partial water changes between doses if water quality declines, then re-dose for the new water volume. Continue treatment for the full course recommended on the label, usually around \u003cstrong\u003e5-10 days\u003c\/strong\u003e, unless your vet advises otherwise, and never exceed label directions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp class=\"fph-tip\"\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Keep a few extra Fix Doxy tablets on hand so you always have them ready at the first sign of bacterial stress. A quarantine tank with a heater and sponge filter makes treatment faster and protects your main system.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003c!-- ========== MECHANISM ========== --\u003e\n\u003csection class=\"fph-section\" id=\"mechanism\"\u003e\n\u003ch2\u003eHow This Medication Works\u003c\/h2\u003e\n\u003cul class=\"fph-card-list\"\u003e\n\u003cli\u003e\n\u003ch3\u003eActive Ingredient: Doxycycline Hyclate 100 mg per Tablet\u003c\/h3\u003e\n\u003cp\u003eDoxycycline hyclate is a broad-spectrum tetracycline antibiotic that interferes with bacterial protein synthesis. It helps control susceptible Gram-positive and Gram-negative bacteria linked with fin and tail rot, mouth rot, columnaris, gill disease, septicemia and avian respiratory infections.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eWater- and Feed-Friendly Tablet Base\u003c\/h3\u003e\n\u003cp\u003eTablets are formulated to disperse readily in aquarium water or to be crushed and mixed with soft food or drinking water for ornamental aquarium fish and non-food pet birds, helping the dose spread evenly through the treatment tank or flock.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003c!-- ========== SIDE EFFECTS ========== --\u003e\n\u003cdiv class=\"fph-panel\" id=\"side-effects\"\u003e\n\u003ch2\u003eSide Effects \u0026amp; Safety Tips\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhen used as directed, Fix Doxy is generally well tolerated in ornamental fish and pet birds.\u003c\/strong\u003e As with any doxycycline product, incorrect dosing or prolonged use can increase the risk of side effects.\u003c\/p\u003e\n\u003cul class=\"fph-card-list\"\u003e\n\u003cli\u003e\n\u003ch3\u003eFish\u003c\/h3\u003e\n\u003cp\u003eDoxycycline based fish antibiotics may cause temporary stress or hiding behavior, mild water discoloration and reduced appetite during treatment. If fish show severe distress such as rapid gill movement, loss of balance or gasping at the surface, stop treatment and seek aquatic veterinary advice.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eBirds\u003c\/h3\u003e\n\u003cp\u003eWhen doxycycline is given in food or drinking water, potential reactions can include decreased appetite, lethargy or changes in droppings if the dose is too high or the bird is sensitive. If your bird appears fluffed up, inactive or stops eating, discontinue use and contact an avian veterinarian.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eInvertebrates\u003c\/h3\u003e\n\u003cp\u003eDo not use Fix Doxy in tanks that contain shrimp, snails, or other invertebrates, as strong antibiotics may harm them. Treat fish in a separate hospital tank whenever possible.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eSafe Use in Your System\u003c\/h3\u003e\n\u003cp\u003eWhenever possible, treat fish in a hospital or quarantine tank, remove activated carbon and UV sterilizers and follow label directions for dose and duration. Do not mix Fix Doxy with other antibiotics unless advised by a veterinarian.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch3\u003eImportant Safety Warning\u003c\/h3\u003e\n\u003cp\u003eFix Doxy is intended for \u003cstrong\u003eornamental aquarium fish and non-food pet birds only\u003c\/strong\u003e. It is \u003cstrong\u003enot for human use\u003c\/strong\u003e and not for animals raised for food. Using fish antibiotics in people instead of prescribed medicine can lead to treatment failure, serious side effects and antibiotic resistance. Store the product in a cool, dry place away from children. Always follow label directions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003c!-- ========== SHIPPING ========== --\u003e\n\u003csection class=\"fph-section\" id=\"shipping\"\u003e\n\u003ch2\u003eShipping \u0026amp; Returns\u003c\/h2\u003e\n\u003cdiv class=\"fph-info-grid\"\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eShipping Policy:\u003c\/strong\u003e Orders ship from our U.S. warehouse within 1 business day via USPS or UPS, with rates and delivery times calculated at checkout. For full shipping details, please review our \u003ca href=\"https:\/\/finpetmeds.com\/policies\/shipping-policy\"\u003eshipping policy\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eRefund Policy:\u003c\/strong\u003e If there is an issue with your order, you may be able to return or exchange items within 30 days according to our store guidelines. Before sending anything back, please review our \u003ca href=\"https:\/\/finpetmeds.com\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e carefully.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003c!-- ========== FAQ ========== --\u003e\n\u003csection class=\"fph-section\" id=\"faq\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"fph-faq-list\"\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eWhat is Fix Doxy used for?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Doxy is a doxycycline hyclate 100 mg antibiotic for ornamental aquarium fish and non-food pet birds. It is used when bacterial problems such as fin and tail rot, columnaris, gill disease, septicemia or respiratory infections in birds are suspected and a veterinarian or experienced aquatic or avian keeper recommends a doxycycline-class product. It does not treat parasitic, viral or fungal conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eWhat is the difference between Fish Doxy and Fix Doxy?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFish Doxy was a doxycycline 100 mg product made by Thomas Labs, which has been discontinued. Fix Doxy is a replacement made by Aqua Soma Labs using the same active ingredient (doxycycline hyclate 100 mg) and the same tablet-based dosing style. The main difference is the manufacturer and packaging; the active ingredient, strength and general usage directions are the same.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eIs Fix Doxy the same as older Fish Doxy or Bird Biotic tablets?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eFix Doxy uses the same \u003cstrong\u003edoxycycline hyclate 100 mg\u003c\/strong\u003e strength and similar dosing style as many hobbyists remember from Fish Doxy, Fishdox and Bird Biotic-type products. However, it is its own branded formula from Aqua Soma Labs, and you should always follow the directions printed on the Fix Doxy label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eIs Fix Doxy a replacement for Bird Biotic?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eYes. Bird Biotic was a doxycycline hyclate 100 mg product from Thomas Labs intended for pigeons, pet birds, and exotic birds. Fix Doxy contains the same active ingredient at the same strength and can be used for non-food pet birds in the same way. Follow the Fix Doxy label directions for avian dosing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eIs Fix Doxy the same as Aqua Doxy?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eAqua Doxy was another doxycycline-based fish antibiotic brand. Fix Doxy from Aqua Soma Labs uses the same active ingredient (doxycycline hyclate 100 mg) and serves the same purpose. If you previously used Aqua Doxy for your aquarium or aviary, Fix Doxy is a suitable replacement with the same dosing strength.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eDo I need a veterinary prescription to buy Fix Doxy?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eMany hobbyists search online for doxycycline for fish without vet prescription. Fix Doxy 100 mg is sold and labeled as an over-the-counter (OTC) aquarium fish and bird antibiotic for ornamental fish and non-food pet birds, and in most regions it is available without a veterinary prescription. However, regulations can change, and serious or recurring infections should always be checked by an aquatic or avian veterinarian, who can confirm whether doxycycline is appropriate and how to use it safely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eWhere can I buy doxycycline for fish online?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eYou can buy Fix Doxy doxycycline 100 mg tablets directly from this page at Fine Pet Health. Orders ship from our U.S. warehouse with same-day dispatch on orders placed before 1:30 p.m. CT, Monday through Friday. Select your preferred bottle size (30-count or 60-count) above and proceed to checkout.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eHow do I know if my fish or bird might need an antibiotic like Fix Doxy?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eSigns of possible bacterial issues can include frayed or reddened fins, open sores, body patches, labored breathing, nasal discharge, fluffed-up feathers, or a sudden drop in appetite. These signs are not specific to one disease, so a veterinarian or experienced aquatic or avian professional should help confirm whether a doxycycline fish and bird antibiotic is appropriate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eHow long should I treat with Fix Doxy 100 mg?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eMost label directions for doxycycline 100 mg tablets call for a course of \u003cstrong\u003eabout 5-10 days\u003c\/strong\u003e, with doses given every 24 hours. Do not stop early just because symptoms look better, and never extend the course or change the dose beyond what the label or your veterinarian advises.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eWhat size aquarium can one Fix Doxy tablet treat?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eLabel directions typically call for \u003cstrong\u003e1 tablet (100 mg) per 15 gallons (57 L) of water\u003c\/strong\u003e. For a 30-gallon hospital tank you would use 2 tablets per dose. Always measure your treatment tank volume carefully and follow the directions on the Fix Doxy label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eDoes Fix Doxy work in saltwater aquariums?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eYes. Fix Doxy is effective against susceptible Gram-positive and Gram-negative bacteria in both freshwater and saltwater aquariums. The same dosing directions apply. As always, treat in a hospital or quarantine tank whenever possible to protect your main system's biofilter and invertebrates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eCan I use Fix Doxy in my main display or community tank?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eIt is usually better to treat in a hospital or quarantine tank. Like other broad-spectrum aquarium antibiotics, Fix Doxy can affect beneficial biofilter bacteria in a community tank. Treating separately helps protect your main system and makes it easier to monitor sick fish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eWill Fix Doxy harm my aquarium's biofilter?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eAny strong antibacterial treatment can impact nitrifying bacteria if used in the main tank. Using a separate treatment tank, monitoring ammonia and nitrite, and performing partial water changes as directed helps reduce the risk to your biofilter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eCan Fix Doxy be used for racing pigeons?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eDoxycycline has a long history of use in avian medicine, including for racing pigeons. Fix Doxy delivers the same doxycycline hyclate 100 mg that was available in Bird Biotic products used by pigeon fanciers. Dose and duration must match the bird's species and weight, so follow the Fix Doxy label or consult an avian veterinarian before treating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eCan Fix Doxy be used for multiple bird species?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eDoxycycline is commonly used in avian medicine, but dose and duration must match the bird's species, size and condition. Use Fix Doxy for birds only under guidance from an avian veterinarian or according to clear directions from the product label for non-food pet birds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eCan I combine Fix Doxy with other fish medications?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eDo not mix Fix Doxy with other antibiotics or medications unless specifically advised by a veterinarian. Combining treatments can reduce effectiveness, cause harmful interactions, or increase stress on fish. If a second medication is needed, finish the doxycycline course first, perform a water change with activated carbon, and then begin the next treatment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eWhat should I do if my fish or bird is not improving on Fix Doxy?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eStop treatment and contact a veterinarian. Lack of improvement can mean the problem is not bacterial, the bacteria are not susceptible to doxycycline, or the dose or treatment duration is not appropriate. Continuing an ineffective antibiotic can delay proper care.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eHow should I store Fix Doxy tablets?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eStore Fix Doxy in a cool, dry place away from direct sunlight and moisture, with the bottle tightly closed. Keep out of reach of children and pets. Check the expiration date on the packaging and do not use tablets past that date.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eHow should I dispose of water or filter media that contained Fix Doxy?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eAfter treatment, avoid dumping all medicated water at once into drains that may lead directly to natural ponds, streams or outdoor soil. Instead, carry out several partial water changes and dilute the used aquarium water with plenty of fresh tap water before disposal, following any local guidelines for aquarium water. Used filter media, carbon and disposable decorations that have been exposed to antibiotics should be sealed in a bag and placed in household trash rather than rinsed outdoors, to help protect nearby aquatic ecosystems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"fph-faq-item\"\u003e\n\u003csummary\u003eIs Fix Doxy the same as the doxycycline humans take?\u003c\/summary\u003e\n\u003cdiv class=\"fph-faq-answer\"\u003e\n\u003cp\u003eNo. Even though Fix Doxy uses a doxycycline-class ingredient, it is manufactured, labeled and quality-controlled for fish and birds only. Human medicines must come from a healthcare professional and a licensed pharmacy. \u003cspan class=\"fph-inline-warning\"\u003eNever use Fix Doxy or any fish antibiotic for human treatment or for animals raised for food.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003c!-- ========== MORE ANTIBIOTICS ========== --\u003e\n\u003csection class=\"fph-section\"\u003e\n\u003ch2\u003eMore Fish \u0026amp; Bird Antibiotics\u003c\/h2\u003e\n\u003cdiv class=\"fph-info-grid\"\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFix Mox (Amoxicillin) 250\/500mg\u003c\/strong\u003e A broad-spectrum penicillin-type fish antibiotic for fin rot, dropsy, ulcers and other bacterial infections. Available in 30-count and 100-count capsules. \u003ca href=\"https:\/\/finpetmeds.com\/collections\/fish-antibiotics\/products\/fix-mox-amoxicillin-capsules-fish-antibiotics\"\u003eShop Fix Mox\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFix Zole (Metronidazole) 250\/500mg\u003c\/strong\u003e Targets anaerobic bacteria and protozoa including Hexamita and hole-in-the-head disease in ornamental fish. Available in 60-count bottles. \u003ca href=\"https:\/\/finpetmeds.com\/collections\/fish-antibiotics\/products\/fix-zole-250-metronidazole-250mg-60-doses\"\u003eShop Fix Zole\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFix Zithro (Azithromycin) 250mg\u003c\/strong\u003e A macrolide fish and bird antibiotic for fin rot, columnaris, gill disease and avian respiratory concerns. Available in 12-count and 30-count tablets. \u003ca href=\"https:\/\/finpetmeds.com\/collections\/fish-antibiotics\/products\/fix-zithro-azithromycin-250\"\u003eShop Fix Zithro\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFix Cin (Clindamycin) 150mg\u003c\/strong\u003e A lincosamide fish antibiotic commonly used for gram-positive bacterial infections including skin and soft tissue concerns in ornamental fish. \u003ca href=\"https:\/\/finpetmeds.com\/collections\/fish-antibiotics\/products\/fix-cin-clindamycin-150-fish-antibiotic\"\u003eShop Fix Cin\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFix Sulfa (SMZ\/TMP) 960mg\u003c\/strong\u003e A sulfonamide combination fish antibiotic offering broad-spectrum coverage against a range of bacterial infections in ornamental fish. \u003ca href=\"https:\/\/finpetmeds.com\/collections\/fish-antibiotics\/products\/fix-sulfa-960-mg-otc-fish-antibiotic\"\u003eShop Fix Sulfa\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFix Pen (Penicillin) 500mg\u003c\/strong\u003e A penicillin-type fish and bird antibiotic for gram-positive bacterial infections in ornamental fish and non-food pet birds. \u003ca href=\"https:\/\/finpetmeds.com\/collections\/fish-antibiotics\/products\/fix-pen-500mg-otc-fish-bird-penicillin\"\u003eShop Fix Pen\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFix Flex (Cephalexin) 250\/500mg\u003c\/strong\u003e A first-generation cephalosporin fish and bird antibiotic for fin rot, ulcers and bacterial skin infections in ornamental fish. \u003ca href=\"https:\/\/finpetmeds.com\/collections\/fish-antibiotics\/products\/fix-flex-cephalexin-fish-bird-antibiotic\"\u003eShop Fix Flex\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eFix Flox (Ciprofloxacin) 500mg\u003c\/strong\u003e A fluoroquinolone fish and bird antibiotic for gram-negative bacterial infections including fin rot, ulcers, columnaris and septicemia in ornamental fish. \u003ca href=\"https:\/\/finpetmeds.com\/collections\/fish-antibiotics\/products\/fix-flox-ciprofloxacin-500\"\u003eShop Fix Flox\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eBrowse all treatments\u003c\/strong\u003e Explore our complete \u003ca rel=\"noopener\" href=\"https:\/\/finpetmeds.com\/collections\/fish-doxycycline\"\u003e\u003cstrong\u003eFish \u0026amp; Bird Antibiotics Collection\u003c\/strong\u003e\u003c\/a\u003e for more Fix line products and related treatments.\u003c\/p\u003e\n\u003cp class=\"fph-info-card\"\u003e\u003cstrong\u003eGuides and treatment tips\u003c\/strong\u003e Visit the \u003ca rel=\"noopener\" href=\"https:\/\/finpetmeds.com\/collections\/fish-doxycycline\"\u003e\u003cstrong\u003eFish \u0026amp; Bird Antibiotics Blog\u003c\/strong\u003e\u003c\/a\u003e for practical dosing guides, water-care advice and treatment tips.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003c\/div\u003e","brand":"Aqua Soma Labs","offers":[{"title":"100-mg (30 count)","offer_id":51178806116637,"sku":"190067","price":69.99,"currency_code":"USD","in_stock":true},{"title":"100-mg (60 count)","offer_id":51178806149405,"sku":"748712","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0987\/3863\/5037\/files\/fix-doxy-doxycycline-100mg-30-count-fish-antibiotic..jpg?v=1776423758","url":"https:\/\/finpetmeds.com\/products\/fix-doxy-doxycycline-100mg-30-tablets","provider":"FINPETMEDS","version":"1.0","type":"link"}