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Aquarium Penicillin
Browse our selection of Aquarium Penicillin, a classic antibiotic effective against many gram-positive bacterial infections in aquarium fish. Penicillin works by inhibiting bacterial cell wall synthesis.
Penicillin can be used to treat conditions such as:
- Fin rot
- Tail rot
- Mouth rot
- Some skin ulcers
If you’re unsure if penicillin is the right treatment for your fish, we also offer other types of fish antibiotics, including:
- Amoxicillin
- Cephalexin
- Doxycycline
- Metronidazole
- Azithromycin
- Ciprofloxacin
- Clindamycin
- Sulfamethoxazole
- Fluconazole (While Fluconazole is an antifungal, it is included because it is sometimes used in conjunction with antibiotics.)
Here are some specific Penicillin products we carry:
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Fish Penicillin – fish pen 500mg 60 Tablets
$99.99Original price was: $99.99.$89.99Current price is: $89.99. - (0)
Thomas Labs Fish Pen – Penicillin 500 mg Tablets (30 Count)
$79.99Original price was: $79.99.$59.99Current price is: $59.99. - (0)
Thomas labs Fish Pen Forte – Penicillin 500 mg Tablets (60 Count)
$99.99Original price was: $99.99.$89.99Current price is: $89.99.