Fritz Aquatics Bactershield®

Fritz Bactershield® is a non-antibiotic aquarium treatment designed to support fish health by repairing and strengthening their natural protective slime coat. Formulated with natural oils, botanical extracts and a patented bio-adhesive technology, Bactershield creates a protective barrier that helps defend fish against common bacterial and fungal infections.

Ideal for both freshwater and saltwater aquariums, Fritz Bactershield can be used as a preventative treatment following stressful events such as transportation, handling or introducing new fish. It also helps manage mild cases of fin and tail rot, Popeye, fungal infections and gill disease.

Features & Benefits

• Non-Antibiotic Formula: Supports fish health without the use of traditional antibiotics.

• Strengthens Natural Slime Coat: Helps repair and reinforce the fish's first line of defence against infection.

• Bacterial & Fungal Protection: Supports fish affected by mild fin rot, tail rot, Popeye, fungal infections and gill disease.

• Natural Active Ingredients: Contains beneficial botanical oils and extracts combined with bio-adhesive technology.

• Ideal for Preventative Care: Suitable for use following transportation, handling, environmental changes and other stressful events.

• Freshwater & Saltwater Compatible: Designed for use in both aquarium environments.

• Plant & Invertebrate Friendly: Suitable for planted aquariums and reef systems when dosed according to instructions.

• Compatible with Other Treatments: Can be used alongside other Fritz aquarium medications and water conditioners.

Active Ingredients

Chitosan, Cinnamon Oil, D-Limonene, Geranium Oil, Pine Oil and Rosemary Oil.

Directions & Dosage

Shake well before use.

Standard Dosage:

• Add 4 drops per 3.8 litres of aquarium water.

• Alternatively, dose 5 mL per 95 litres.

Standard Treatment Schedule

• Day 1: Add 4 drops per 3.8 litres.

• Day 2: No treatment or water change required.

• Day 3: Repeat the recommended dosage.

• Day 4: No treatment or water change required.

• Day 5: Repeat the recommended dosage.

• Day 6: Perform an optional 25% water change.

If symptoms improve but have not completely disappeared, the treatment course may be repeated. If no improvement occurs, consider an appropriate alternative treatment following expert advice.

Reef & Invertebrate-Safe Dosing

For reef aquariums or systems containing invertebrates, divide the daily dosage into two smaller treatments:

• Add 2 drops per 3.8 litres, or 5 mL per 190 litres, per treatment.

• Administer the second half-dose 12 hours later.

• Repeat on Days 1, 3 and 5 for a total of six half-dose treatments.

Important Treatment Guidelines

• Remove activated carbon during treatment.

• Maintain adequate water circulation and aeration.

• UV sterilisers may remain operational.

• Protein skimmers may produce excessive foam. Switch off the skimmer if excessive foaming occurs.

• Complete the full treatment course even if symptoms improve.

• Avoid water changes during treatment unless necessary.

• Monitor ammonia and nitrite levels, as treatment may affect beneficial nitrifying bacteria.

• Some corals and other stationary invertebrates may temporarily retract during treatment, potentially for up to 24 hours.

• If fish show signs of distress following an overdose, perform a substantial water change.

Temperature Note: The manufacturer recommends temperatures above 27°C for best results. Only increase aquarium temperature when appropriate for the fish and other livestock being treated.

Why Choose Fritz Bactershield?

Fritz Bactershield offers a natural, non-antibiotic approach to supporting aquarium fish health. By reinforcing the protective slime coat and helping defend against mild bacterial and fungal infections, it provides an excellent option for preventative aquarium care, quarantine systems and recovery following stressful conditions.

Suitable for freshwater, saltwater and planted aquariums, with specialised dosing instructions for reef systems.

For ornamental aquarium use only. Consult an aquatic veterinarian or qualified fish health professional for diagnosis and treatment of serious or persistent infections.