Fritz Aquatics FritzZyme® 7 Freshwater Nitrifying Bacteria 946ml / 32oz

The Original Live Nitrifying Bacteria for Freshwater Aquariums

Fritz Aquatics FritzZyme® 7 is a powerful, live nitrifying bacteria supplement formulated for freshwater and brackish aquariums. It rapidly eliminates toxic ammonia and nitrite, ensuring a safe and healthy environment for your fish. Unlike dry or spore-based products, FritzZyme® 7 contains true live nitrifying bacteria, proven effective for over 30 years in aquaculture, zoos, and public aquariums worldwide.

This concentrated formula helps new tanks cycle faster, reduces fish loss, and strengthens biofilters after water changes, medication, or filter cleaning. Safe for all species including plants and invertebrates, it is ideal for use in both new and established systems.

Key Benefits of FritzZyme® 7 Freshwater

• Rapidly seeds biofilters to eliminate ammonia and nitrite

• Shortens the aquarium cycling process for safe, immediate livestock addition

• Supports biofilter recovery after maintenance, medicating, or livestock introduction

• No refrigeration required with 1-year shelf life

• Buffered for stability and long-term viability

• Safe to use directly in tanks with fish, shrimp, and plants present

Directions & Dosage

• New Aquariums: 4 oz (119 ml) per 10 US gallons (38 L)

• Established Systems: 2 oz (60 ml) per 10 US gallons (38 L)

• For heavy bioload systems, the new system dosage can be safely increased up to 10x.

Important:

• Remove chlorine/chloramines before dosing.

• Discontinue UV sterilizers and protein skimmers for at least 5 days.

• Maintain pH above 7.3 and alkalinity above 4.5 dKH for best results.

• Store in a cool, dark place. Do not freeze or overheat.

Why Choose Fritz Aquatics FritzZyme® 7?

With decades of proven success, FritzZyme® 7 is trusted by professionals worldwide in aquaculture, research facilities, and public aquariums. Unlike competing products that use dormant or ineffective bacterial strains, FritzZyme® 7 delivers true nitrifying bacteria that immediately start working to protect your aquarium.

Product Details

• Brand: Fritz Aquatics

• Product: FritzZyme® 7 Freshwater Nitrifying Bacteria

• Size: 946ml / 32oz

• UPC: 080531040329

• Form: Liquid – Live nitrifying bacteria

• Safe For: All freshwater species, plants, and invertebrates