Shop fish antibiotics
including Amoxicillin, Doxycycline & Ciprofloxacin. Free shipping on every U.S. order. Ships 1-2 business days.
Fish Mox (Amoxicillin) Capsules Fish Antibiotics
Fish Mox (Amoxicillin) for Aquarium Fish: Complete Dosage, Treatment & Safety Guide Everything aquarists need to know about using Fish Mox to treat bacterial infections — from dosage charts and tank preparation...
Our Antibiotics
Fish Clin 150 - 100 Capsules
Fish Doxy (Doxycycline) Capsules Fish Antibiotics
Fish Flex (Cephalexin) Capsules Fish Antibiotics
Fish Flox (Ciprofloxacin) Tablets Fish Antibiotics, 500-mg
Fish Mox (Amoxicillin) Capsules Fish Antibiotics
Fish Pen (Penicillin) Tablets Fish Antibiotics, 500-mg
Fish Zole (Metronidazole) Tablets Fish Antibiotics
Fish and Bird Antibiotics — Shipped Free Across the U.S.
Fish Mox Supply is a dedicated source for fish antibiotics and bird antibiotics used by aquarists, aviculturists, and hobbyists who need reliable medication for their aquatic and avian companions. Every order ships free within the United States and leaves our San Bernardino, California warehouse within one to two business days. Whether you maintain a backyard koi pond, a saltwater reef tank, or an aviary, keeping the right antibiotics on hand helps you act fast when bacterial infections appear — before they spread to the rest of your stock.
Our Fish & Bird Antibiotics
We carry a focused catalog of broad-spectrum and targeted antibiotics, each selected for a specific range of bacterial infections commonly seen in ornamental fish and caged birds.
Amoxicillin (Fish Mox)
Fish Mox (amoxicillin) is a broad-spectrum penicillin-type antibiotic widely used for gram-positive bacterial infections in freshwater and saltwater fish. Available in 250 mg and 500 mg capsules, it is one of the most commonly stocked fish medications for home aquariums and ponds.
Cephalexin (Fish Flex)
Fish Flex (cephalexin) is a first-generation cephalosporin effective against skin and soft-tissue bacterial infections. It offers an alternative when a penicillin-class antibiotic is not suitable for the species being treated.
Ciprofloxacin (Fish Flox)
Fish Flox (ciprofloxacin) targets gram-negative bacteria, making it useful for infections that do not respond to amoxicillin or cephalexin. It is a fluoroquinolone-class antibiotic supplied in 250 mg and 500 mg strengths.
Doxycycline, Metronidazole, Penicillin & More
Beyond our core lines, we stock Fish Doxy (doxycycline) for tetracycline-responsive conditions, Fish Zole (metronidazole) for anaerobic and parasitic infections, sulfa antibiotics, and Bird Zithro (azithromycin) formulated for avian use. Browse the full product catalog to find the right medication for your situation.
Why Choose Fish Mox Supply
- Free U.S. Shipping on Every Order — No minimum purchase required. All domestic orders ship at no extra cost.
- Fast Dispatch — Orders placed before 2 PM Pacific Time typically ship the same business day from our San Bernardino, CA facility.
- Sealed, Clearly Labeled Products — Every item arrives in its original manufacturer packaging with lot numbers and expiration dates intact.
- Satisfaction Guarantee — If your order arrives damaged or incorrect, contact us and we will make it right with a replacement or refund.
Fish Mox Supply has operated out of Southern California since our founding, serving fishkeepers and bird owners who value fast shipping, transparent labeling, and a focused product selection. Questions before you order? Reach our support team through the contact page.
FAQs
The total delivery time is 3 to 7 business days. Orders are processed within 1 to 2 business days, and shipping times may vary based on location.
Currently, we only offer shipping within United States. We are actively exploring options for international shipping and hope to expand our services in the future.
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
We want you to be completely satisfied with your purchase. If you receive a damaged or incorrect item, please contact our customer support within 30 days of receiving your order, and we will arrange for a replacement or refund. Please visit our Returns & Exchanges page for more information.
Yes, we provide order tracking for all purchases. You will receive a tracking number via email once your order is shipped. You can use this tracking number to monitor the status and estimated delivery date of your package.
No, there are no additional customs fees or taxes for orders within United States. The price you see on the product page is the final price you'll pay at checkout. However, please note that if you have any specific questions about taxes or fees related to your order, feel free to reach out to our customer support for assistance.
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