Fritz Aquatic FritzZyme 9 Saltwater

FritzZyme 9 Saltwater is a concentrated live nitrifying bacteria supplement designed specifically for marine and saltwater aquariums. It helps rapidly establish and strengthen biological filtration by introducing saltwater-specific bacteria that process toxic ammonia and nitrite.

It is ideal for new aquarium setups, cycling marine systems, adding livestock, replacing filter media, or supporting an established biofilter after cleaning, medication or other disruptions.

Key Features

• Contains live saltwater-specific nitrifying bacteria
• Helps rapidly reduce toxic ammonia and nitrite
• Speeds up the aquarium cycling process
• Suitable for new and established marine aquariums
• Helps strengthen biological filtration
• No refrigeration required
• Approximately 1 year shelf life
• Safe for fish, corals, plants and invertebrates
• Can be added directly to systems with livestock present
• Will not normally cloud or discolour aquarium water
• Useful after maintenance, water changes or filter cleaning

Why Use Nitrifying Bacteria?

In a new aquarium, beneficial nitrifying bacteria can take weeks to naturally establish in sufficient numbers. During this period, ammonia and nitrite can quickly build to dangerous levels.

FritzZyme 9 introduces the bacteria responsible for converting:

Ammonia → Nitrite → Nitrate

This helps seed the biological filter faster and supports a more stable cycling process.

Ideal for New Aquariums

For new marine systems:

Dose 119 mL per 19 litres of aquarium water.

This high initial dose helps rapidly seed new filter media, rock and aquarium surfaces with beneficial bacteria.

For heavily stocked systems or systems with a high bioload, the new-system dose can be increased significantly when required.

Established Aquarium Dosage

For established systems:

Dose 60 mL per 19 litres of aquarium water.

FritzZyme 9 can be added whenever the biofilter needs additional support, including after:

• Large water changes
• Aggressive cleaning
• Adding new livestock
• Medication
• Replacing or cleaning filter media
• Temporary filtration disruption

Important Use Information

For best results:

• Maintain good water circulation and aeration
• Provide an ammonia source when cycling a new aquarium
• Turn off UV sterilizers and protein skimmers for at least 5 days after dosing
• Store in a cool, dark location
• Do not freeze or expose to excessive heat
• Use before the expiration date on the bottle

Differences in colour or odour between bottles can occur and do not necessarily indicate that the bacteria are no longer viable.

Ideal Water Parameters

FritzZyme 9 performs best within approximately:

• Temperature: 25–30°C
• pH: 7.3–8.0
• Salinity: 15–40 ppt
• Specific Gravity: approximately 1.011–1.030
• Alkalinity: minimum 4.5 dKH
• Phosphate: above 0 ppm

The FritzZyme 9 Saltwater is an excellent choice for marine aquarists wanting to establish biological filtration faster, reduce ammonia and nitrite risk, and support a more stable saltwater aquarium.