Fix Pen – Penicillin Fish Antibiotics

Focused Gram-Positive Coverage for Ornamental Aquariums

Fix Pen (Penicillin) helps aquarists address common gram-positive bacterial problems in freshwater and saltwater systems. These easy-dose tablets are used for issues such as fin rot, mouth rot, gill disease, and skin lesions. Always confirm a bacterial cause and treat in a hospital tank when possible.

Shop Fix Pen Variants

• Fix Pen Penicillin 500 mg – 30 Tablets
• Fix Pen Penicillin 500 mg – 60 Tablets

Why Choose Fix Pen

• Gram-positive focus: Targets many pathogens implicated in aquarium fin/g