FritzZyme TurboStart 700 Freshwater 4 oz – Live Nitrifying Bacteria
FritzZyme TurboStart 700 Freshwater 4 oz is a highly concentrated live nitrifying-bacteria supplement formulated to establish and strengthen biological filtration in freshwater aquariums.
The specialized freshwater bacteria help convert toxic ammonia into nitrite and then convert nitrite into less-toxic nitrate. This natural nitrification process is essential when cycling a new aquarium and maintaining a stable biological filter in an established system.
TurboStart 700 contains approximately 15 times the concentration of bacteria found in standard FritzZyme 7, making it a strong option for new aquariums, fish-in or fishless cycling, increased livestock loads, filter-media changes, and systems recovering from medication or major maintenance.
Key Features
- Concentrated Live Bacteria: Contains live freshwater-specific nitrifying bacteria
- Supports Aquarium Cycling: Helps establish the biological filtration needed to process ammonia and nitrite
- Helps Control Toxic Waste: Supports the conversion of ammonia to nitrite and nitrite to nitrate
- For New or Established Aquariums: Useful during cycling and whenever the biofilter requires reinforcement
- Fish-In or Fishless Cycling: May be used with livestock present or paired with an ammonia source such as Fritz Fishless Fuel
- Freshwater-Specific Formula: Optimized for freshwater and low-salinity brackish systems
- Plant & Invertebrate Compatible: Safe for aquarium plants and invertebrates when used as directed
- 4 oz Bottle: Treats up to approximately 200 gallons at the standard dosage
Product Information
- Brand: Fritz Aquatics
- Product: FritzZyme TurboStart 700 Freshwater
- Size: 4 oz
- Metric Volume: Approximately 118 mL
- Product Type: Concentrated live nitrifying bacteria
- Water Type: Freshwater and low-salinity brackish aquariums
- Standard Dose: 1 oz per 50 US gallons
- Treatment Capacity: Up to approximately 200 gallons
- Storage: Refrigerate at approximately 45–55°F
Best Used For
- Cycling new freshwater aquariums
- Fish-in aquarium cycling
- Fishless cycling with an appropriate ammonia source
- Adding new fish or increasing bioload
- Replacing or cleaning biological filter media
- Recovering after medication use
- Reinforcing an established biological filter
- Aquariums showing measurable ammonia or nitrite
- Freshwater fish, planted, shrimp, and community aquariums
Directions for Use
Shake the bottle well before dosing.
For new freshwater systems, add:
1 oz per 50 US gallons of aquarium water.
TurboStart 700 may be used at up to five times the standard dose when faster bacterial establishment is desired. Continue testing ammonia and nitrite because aquarium conditions and cycling time vary.
Standard Dosage Guide
- 5 Gallons: Approximately 3 mL
- 10 Gallons: Approximately 6 mL
- 20 Gallons: Approximately 12 mL
- 29 Gallons: Approximately 17 mL
- 40 Gallons: Approximately 23 mL
- 50 Gallons: 1 oz or approximately 29 mL
- 55 Gallons: Approximately 32 mL
- 75 Gallons: Approximately 44 mL
- 100 Gallons: 2 oz or approximately 59 mL
- 125 Gallons: Approximately 74 mL
- 150 Gallons: 3 oz or approximately 89 mL
- 200 Gallons: 4 oz or approximately 118 mL
Before Dosing
Remove all chlorine and chloramine from tap water before adding TurboStart 700. Chlorine and chloramine can kill or significantly damage live nitrifying bacteria.
Use an appropriate water conditioner before adding the bacteria. Maintain normal filtration, water movement, and aeration so the bacteria receive sufficient oxygen and can circulate throughout the aquarium.
Fish-In Cycling
TurboStart 700 may be added directly to an aquarium containing freshwater fish, plants, shrimp, snails, and other appropriate livestock.
For a fish-in cycle:
- Completely condition the aquarium water to remove chlorine and chloramine.
- Add the standard dose of TurboStart 700.
- Add properly acclimated livestock within approximately 24 hours so the bacteria have an ammonia source.
- Feed conservatively and avoid overstocking.
- Test ammonia and nitrite regularly.
- Use an appropriate detoxifying conditioner and perform water changes if ammonia or nitrite reaches unsafe levels.
TurboStart helps establish the biofilter, but water testing remains necessary. It should not be used as a reason to overcrowd or heavily feed a new aquarium.
Fishless Cycling
TurboStart 700 may be paired with Fritz Fishless Fuel or another controlled ammonia source for fishless cycling.
- Fill and dechlorinate the aquarium.
- Add the standard dose of TurboStart 700.
- Add the ammonia source within approximately 24 hours.
- Fritz recommends an ammonia concentration of approximately 2–4 ppm for fishless cycling.
- Test ammonia, nitrite, and nitrate regularly.
- Do not add livestock while ammonia or nitrite remains elevated.
- Add fish only after the aquarium can process the ammonia source and ammonia and nitrite are at or very near zero.
Fritz Fishless Fuel must not be used in an aquarium containing livestock.
Using TurboStart in an Established Aquarium
TurboStart 700 may be used whenever the established biological filter could benefit from additional nitrifying bacteria, including:
- After replacing biological filter media
- After aggressive filter cleaning
- After a prolonged power outage
- After medications that may affect the biofilter
- When adding a significant number of fish
- When ammonia or nitrite becomes detectable
- After moving or restarting an aquarium
Identify and correct the underlying cause of ammonia or nitrite. Adding bacteria does not replace correcting overfeeding, overstocking, dead livestock, insufficient filtration, low pH, or poor aquarium maintenance.
UV Sterilizer and Protein Skimmer Instructions
Turn off UV sterilizers and protein skimmers before adding TurboStart 700 and leave them off for at least five days after application.
UV sterilization may damage free-floating bacteria before they establish on aquarium surfaces and filter media. Protein skimming is uncommon in most freshwater aquariums but should be paused when present.
Keep normal filters, circulation pumps, air pumps, and surface agitation running.
Ideal Conditions for Nitrifying Bacteria
- Temperature: 77–86°F for fastest activity
- Preferred pH: Approximately 7.3–8.0
- Minimum pH: Nitrification is inhibited below approximately pH 6.0
- Minimum KH: Approximately 4.5 dKH or 80 ppm
- Phosphate: Must remain above 0 ppm
- Preferred Salinity: 0–6 ppt
- Maximum Functional Salinity: Up to approximately 15 ppt with reduced activity
The bacteria can function outside the preferred temperature and pH range, but cycling may take longer.
Freshwater vs. Saltwater Formula
TurboStart 700 contains bacteria selected for freshwater and low-salinity brackish environments.
- TurboStart 700: Freshwater and most low-salinity brackish aquariums
- TurboStart 900: Saltwater and reef aquariums
The freshwater and saltwater formulas are not interchangeable because the bacterial strains are optimized for different salinity ranges.
Storage Instructions
Keep refrigerated.
The ideal storage temperature is approximately 45–55°F. Do not freeze the product and do not expose it to excessive heat.
Use TurboStart 700 before the expiration date printed on the bottle. Return the bottle to refrigeration promptly after use.
Color and odor may vary between bottles. A strong earthy or sulfur-like odor does not necessarily mean the bacteria are no longer viable.
Temporary Cloudiness or Odor
The aquarium may develop slight cloudiness or an earthy or sulfur-like odor for several hours after dosing. Fritz identifies this as a possible temporary response.
Maintain adequate aeration and observe livestock. If fish display respiratory distress or other unusual behavior, increase aeration, test the water, and perform a partial water change if necessary.
Can TurboStart Be Overdosed?
Live nitrifying bacteria are generally safe when added above the standard dosage, and Fritz permits dosing up to five times the normal amount to decrease cycling time.
More bacteria do not eliminate the need for sufficient oxygen, alkalinity, appropriate pH, and an ammonia source. Observe livestock after any large dose and perform a small water change if distress occurs.
Does TurboStart Instantly Make Every Aquarium Safe?
TurboStart 700 can greatly accelerate the establishment of biological filtration, but no bacterial supplement eliminates the need to test aquarium water.
Cycling speed depends on:
- Starting ammonia concentration
- Temperature
- pH and KH
- Oxygenation and water movement
- Available biological filter surface area
- Livestock and feeding levels
- Use of medications or disinfectants
- Product storage and expiration
Monitor ammonia and nitrite until the biological filter is proven stable.
Frequently Asked Questions
What is FritzZyme TurboStart 700?
It is a concentrated live nitrifying-bacteria supplement formulated for freshwater and low-salinity brackish aquariums.
What does it do?
It supports the biological conversion of ammonia into nitrite and nitrite into nitrate.
How much should I use?
Add 1 oz per 50 gallons for a new freshwater aquarium.
How many gallons does the 4 oz bottle treat?
The bottle treats up to approximately 200 gallons at the standard dose.
Can it be used at a higher dose?
Yes. Fritz states that it may be used at up to five times the standard dosage.
Does TurboStart need to be refrigerated?
Yes. Store it refrigerated at approximately 45–55°F and do not freeze it.
Can it be added with fish present?
Yes. It may be added directly to freshwater aquariums containing livestock when used as directed.
Can it be used for fishless cycling?
Yes. Pair it with an appropriate ammonia source such as Fritz Fishless Fuel.
Should chlorine and chloramine be removed first?
Yes. Both can kill the live bacteria and must be completely neutralized before dosing.
Should the aquarium filter be turned off?
No. Keep normal biological filtration, circulation, and aeration operating.
Should UV sterilization be turned off?
Yes. Turn off UV sterilization before dosing and for at least five days afterward.
Can it be used in a planted aquarium?
Yes. It is safe for freshwater plants when used as directed.
Can it be used with shrimp and snails?
Yes. Fritz states that it is safe for invertebrates when used appropriately.
Can it be used in brackish water?
Yes. It works best from 0–6 ppt and remains active at reduced efficiency up to approximately 15 ppt.
Can it be used in saltwater aquariums?
No. Use FritzZyme TurboStart 900 for saltwater and reef systems.
Why does the bottle smell like sulfur?
Variations in color and odor are normal. A sulfur-like smell does not automatically indicate that the bacteria are dead.
Can it replace water changes?
No. It supports biological filtration but does not replace water changes, testing, appropriate stocking, or routine maintenance.
Available at Tropical Treasures Wyo
FritzZyme TurboStart 700 Freshwater 4 oz provides concentrated live nitrifying bacteria for cycling new aquariums and reinforcing biological filtration in established freshwater systems.
Visit Tropical Treasures Wyo in Cheyenne, Wyoming, to shop Fritz TurboStart 700, Fritz Fishless Fuel, freshwater test kits, filter media, water conditioners, aquarium supplies, live plants, and freshwater fish.
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