Pet & fish health supplies · Shipped across the US
Fish antibiotics and pet health supplies, delivered to your door
Aquarium fish antibacterials, dewormers, flea & tick care, skin and joint support and toys from brands like Aqua Soma Labs, Elanco, Ceva and Dechra, with clear prices and simple shipping.
✓ Free shipping on $49+
✓ Ships in 1–2 business days
✓ Secure PayPal checkout
Free shipping over $49
$5.99 flat rate on smaller US orders
Ships in 1–2 business days
Delivery usually 2–5 business days
30-day returns
On unopened items · policy
Secure PayPal checkout
We never see your card details
Shop by category
Shop by need
Featured products
Popular picks
-
Douxo Calm Allergy Shampoo for Dogs and Cats
Price range: $24.85 through $42.90 -
Fish Doxy (Fix Doxy) Doxycycline 100mg Fish Antibacterial
Price range: $44.99 through $69.80 -
Fish Flex (Fix Flex) Cephalexin 500mg & 250mg Fish Antibacterial
Price range: $19.95 through $49.99 -
Fish Mox (Fix Mox) Amoxicillin 500mg & 250mg Fish Antibacterial
Price range: $25.99 through $39.99 -
Fish Zole (Fix Zole) Metronidazole 500mg & 250mg Fish Antibacterial
Price range: $41.99 through $59.99 -
Panacur C Dewormer for Dogs (3 Packets)
Price range: $9.95 through $21.95 -
Phycox HA Joint Supplement for Dogs 120 Soft Chews
$102.10 -
Seresto Flea and Tick Collar
$67.85
Treating sick fish?
Fish antibiotics
Aqua Soma Labs amoxicillin, cephalexin, metronidazole, doxycycline and more for ornamental aquarium fish.

Keep pets parasite-free
Dewormers, flea & tick
Pyrantel, fenbendazole and praziquantel dewormers plus Seresto collars and spot-on treatments.

For aquarium fish
Fish antibiotics
-
Fish Ciprofloxacin 500mg (Fish Flox) Fix Flox Antibacterial
Price range: $45.50 through $84.99 -
Fish Clindamycin 150mg (Fish Cin) Fix Cin Antibacterial
$59.99 -
Fish Doxy (Fix Doxy) Doxycycline 100mg Fish Antibacterial
Price range: $44.99 through $69.80 -
Fish Flex (Fix Flex) Cephalexin 500mg & 250mg Fish Antibacterial
Price range: $19.95 through $49.99 -
Fish Mox (Fix Mox) Amoxicillin 500mg & 250mg Fish Antibacterial
Price range: $25.99 through $39.99 -
Fish Penicillin 500mg (Fish Pen) Fix Pen Antibacterial
Price range: $35.30 through $69.99 -
Fish Sulfa Forte (Fix Sulfa) SMZ/TMP 960mg Fish Antibacterial
Price range: $30.80 through $55.99 -
Fish Zithro (Bird Zithro) Azithromycin 250mg Fish & Bird Antibacterial
Price range: $43.99 through $75.90 -
Fish Zole (Fix Zole) Metronidazole 500mg & 250mg Fish Antibacterial
Price range: $41.99 through $59.99
Brands we carry
About Fish Amoxicillin
Aquarium fish treatments and pet health supplies from one US store
Fish Amoxicillin is an online store run by Fish Amoxicillin Inc in Valdosta, Georgia. We sell treatments for ornamental aquarium fish alongside everyday health and care products for dogs, cats, horses and livestock, from established brands such as Aqua Soma Labs, Elanco, Ceva, Dechra and Merck Animal Health. Every product page shows the price, the available sizes and the stock status before you order.
What are fish antibacterials?
Fish antibacterials are capsules or tablets labeled for treating bacterial infections in ornamental fish, such as fin rot, ulcers and columnaris. Our range includes fish amoxicillin (Fix Mox), cephalexin (Fix Flex), metronidazole (Fix Zole) and doxycycline (Fix Doxy), plus ciprofloxacin, penicillin, azithromycin, clindamycin and SMZ/TMP, in 250 mg and 500 mg strengths where available. They are sold for aquarium use only: not for human use and not for food-producing animals.
How to use aquarium treatments responsibly
- Check the water first. Test ammonia, nitrite and temperature: many symptoms come from water quality rather than an infection.
- Use a hospital tank. Treat sick fish in a separate quarantine tank where possible, and remove activated carbon from the filter during treatment.
- Follow the label. Dose as directed on the product label and finish the full course, even if the fish look better sooner.
- Ask your veterinarian before treating pet birds, and before starting any new medication or supplement for dogs, cats, horses or livestock.
Shipping and returns
We ship to US addresses only. Orders ship within 1–2 business days and usually arrive 2–5 business days later. Shipping is a $5.99 flat rate, and free on orders of $49 or more. Unopened items can be returned within 30 days. See our shipping policy and refund policy for details.
Browse fish antibiotics, pet health, pet supplies and horse & livestock products.
Questions about an order or a product?
Read our FAQ, email support@fishamoxicillin.com or call (229) 329-8251. We reply within 1–2 business days.
















