Expiration Dates

When it comes to treating your aquarium fish, the potency of your antibiotics matters. At TheFishAntibiotics.com, staying updated on fish antibiotic expiration dates helps you ensure that your fish receive only the freshest and most reliable treatments.

Whether you're using Fish Mox (Amoxicillin) for general infections, Fish Doxy (Doxycycline) for tail rot and dropsy, or Fish Zithro (Azithromycin) for gill disease, knowing the expiration date of your fish meds is crucial. This page lists expiration dates of our most trusted antibiotics, helping you shop smarter and safer. Compare your existing product or restock with confidence, knowing your Fish Flex, Fish Zole, or Fish Sulfa is backed by current, powerful formulation.

TheFishAntibiotics.com Product Expiration Dates

• Fish Mox – Amoxicillin 500mg 100 Capsules – Expires: 08/2027

• Fish Mox – Amoxicillin 250mg 100 Capsules – Expires: 05/2027

• Fish Flox – Ciprofloxacin 500mg 60 Capsules – Expires: 04/2027

• Fish Flox – Ciprofloxacin 500mg 30 Capsules – Expires: 04/2027

• Fish Doxy – Doxycycline 100mg 60 Capsules – Expires: 06/2026

• Fish Doxy – Doxycycline 100mg 30 Capsules – Expires: 02/2026

• Fish Flex – Cephalexin 500mg 100 Capsules – Expires: 06/2027

• Fish Flex – Cephalexin 250mg 100 Capsules – Expires: 04/2026

• Fish Pen – Penicillin 500mg 60 Tablets – Expires: 06/2026

• Fish Pen – Penicillin 500mg 30 Tablets – Expires: 06/2026

• Fish Zole – Metronidazole 500mg 60 Tablets – Expires: 02/2027

• Fish Zole – Metronidazole 250mg 100 Tablets – Expires: 12/2026

• Fish Sulfa – Sulfamethoxazole & Trimethoprim 960mg 60 Tablets – Expires: 12/2028

• Fish Sulfa – Sulfamethoxazole & Trimethoprim 960mg 30 Tablets – Expires: 12/2028

• Fish Cin – Clindamycin 150mg 100 Capsules – Expires: 08/2026

• Fish Zithro – Azithromycin 250mg 30 Tablets – Expires: 06/2027

• Reef Flux – Fluconazole 200mg 10 Capsules – Expires: 02/2027