My Fish Mox
USP-grade actives · Sealed & lot-coded
Nine single-ingredient antibacterials for ornamental fish and pet birds — one active, one strength, one count per bottle, with the lot code and expiry printed on the label.
Ships same business day · Tracked US delivery · 30-day returns on sealed bottles
For aquarium and avian use only — not for human consumption.
USP-grade actives
Factory-sealed, lot-coded bottles
Same business day dispatch
US-based support
30-day returns on sealed bottles
Save $1 a bottle on 2+, $3 on 5+
My Fish Mox is a US supplier of fish and bird antibacterials for ornamental aquarium fish and pet birds. We stock nine single-ingredient products from Aqua Soma Labs: amoxicillin (Fish Mox), cephalexin (Fish Flex), doxycycline (Fish Doxy), metronidazole (Fish Zole), azithromycin (Fish Zithro), ciprofloxacin (Fish Flox), penicillin (Fish Pen), sulfamethoxazole with trimethoprim (Fish Sulfa Forte) and clindamycin (Fish Cin). Every bottle holds one active ingredient at a stated strength and count, sealed at the factory with its lot code and expiry date printed on the label, and we do not ship stock within twelve months of expiry. Orders placed before 2:00 PM ET on a business day are dispatched the same day and ship tracked within the United States. These products are sold for aquarium and avian use only. They are not for human consumption, and a sick animal should be seen by an aquatic or avian veterinarian who can identify the organism and advise on the right product and dose.
New to treating an aquarium? Start with testing your water before you medicate, set up a quarantine tank, and read how the antibacterial classes differ. More about who we are and how we source stock, and the legal and regulatory basis for selling these products.
Our product pages and guides are reviewed for pharmacological accuracy by Brandon Castro, Pharmacist, on the My Fish Mox team. That review covers what is in each bottle and how the antibacterial classes are described — it is not a consultation, and we do not diagnose animals or publish dosing regimens.
Last reviewed: September 2026
A single named ingredient at a stated strength. No blends, no undisclosed fillers.
Factory-sealed bottles with the lot code and expiry date printed on the label.
Orders placed before 2:00 PM ET on a business day are dispatched the same day.
Packaged for ornamental fish and pet birds — never for human consumption.
Before you dose
Most bacterial symptoms in an aquarium trace back to water chemistry. Test ammonia, nitrite, nitrate and temperature first, move affected fish to a filtered hospital tank, follow the label, and finish the course.
Our guide walks through choosing between antibacterial classes, setting up a quarantine tank and storing sealed bottles correctly. For a sick animal, an aquatic or avian veterinarian is always the right first call.
No. Everything we sell is labelled and sold for ornamental fish and pet birds only. It is not for human consumption. If you need medication for yourself or another person, see a physician or pharmacist.
That depends on the organism involved, which needs a diagnosis. Our treatment guide explains the antibacterial classes, but it is not a substitute for advice from an aquatic or avian veterinarian.
Orders placed before 2:00 PM ET on a business day are dispatched the same day. Later orders, weekends and holidays go out the next business day.
In factory-sealed bottles, with the active ingredient, strength, count, lot code and expiry date printed on the label.
Every bottle ships with its expiry date printed on the label. We do not ship product that is within twelve months of expiry.
Unopened, factory-sealed bottles can be returned within 30 days of delivery. For safety reasons we cannot accept opened bottles. See our refund & return policy for the full terms.
The time to have an antibacterial on hand is before a fish shows symptoms. Nine sealed, lot-coded options, dispatched the same business day.
