Fish Antibiotics Expiration Dates

When you rely on fish antibiotics for treating bacterial infections in your aquarium, knowing their expiration dates is critical for safety and effectiveness. At TheFishAid.com, we’re committed to transparency and quality. That’s why we provide this up-to-date list of expiration dates for our most popular medications.

Whether you’re using Fish Mox (Amoxicillin), Fish Flex (Cephalexin), Fish Doxy (Doxycycline), or antifungals like Reef Flux (Fluconazole), this reference ensures you're giving your aquatic life the most reliable treatment available. We carry trusted antibiotics including ciprofloxacin, azithromycin, penicillin, and more—formulated specifically for ornamental fish in freshwater and saltwater environments.

TheFishAid.com Product Expiration Dates

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

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

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

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

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

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

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

• Fish Flox – Ciprofloxacin 250mg 60 Capsules – Expires: 04/2027

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

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

• Fish Sulfa – Sulfamethoxazole/Trimethoprim 800mg 30 Tablets (Fishbiotic) – Expires: 12/2028

• Fish Sulfa – Sulfamethoxazole/Trimethoprim 800mg 30 Tablets (Forte) – Expires: 12/2028

• Fish Pen – Penicillin 500mg 12 Tablets – Expires: 06/2026

• Fish Pen – Penicillin 500mg 100 Tablets – Expires: 06/2026

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

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

• Fish Flucon – Fluconazole 100mg 30 Capsules – Expires: 02/2027