Dr Tim's One & Only Aquarium Cycling Kit – Live Bacteria & Ammonium Chloride

Establish a healthy biological filtration system in your new aquarium with the Dr Tim's One & Only Aquarium Cycling Kit, a complete fishless cycling solution combining live nitrifying bacteria with reagent-grade ammonium chloride.

Designed for both freshwater and marine aquariums, this convenient bundle helps establish the beneficial bacteria required to process harmful ammonia and nitrite before introducing fish and other aquatic livestock.

Each kit combines Dr Tim's One & Only Live Nitrifying Bacteria with Dr Tim's Ammonium Chloride, providing the essential components needed to begin and monitor the aquarium nitrogen cycle without exposing fish to harmful ammonia concentrations.

Available in four variations, including freshwater and marine options with different ammonium chloride bottle sizes, allowing you to select the appropriate cycling kit for your aquarium setup.

Key Features:

• Complete Aquarium Cycling Kit – Includes live nitrifying bacteria and ammonium chloride
• Fishless Cycling Solution – Establishes biological filtration without exposing fish to ammonia during cycling
• Dr Tim's One & Only – Contains living nitrifying bacteria to help process ammonia and nitrite
• Reagent-Grade Ammonium Chloride – Provides a controlled ammonia source for establishing beneficial bacteria
• Helps Prevent New Tank Syndrome – Supports development of the biological filtration system before introducing livestock
• Freshwater & Marine Options – Choose the appropriate One & Only formulation for your aquarium
• Supports Biological Filtration – Helps establish bacteria responsible for converting ammonia and nitrite
• No Unnecessary Additives – One & Only contains live bacteria without unnecessary chemical additives
• Suitable for Reef Aquariums – Marine formulation can be used in suitable reef systems when directed
• Multiple Kit Sizes – Available with 60ml, 120ml or 240ml ammonium chloride quantities

How the Aquarium Cycling Kit Works

The Dr Tim's Aquarium Cycling Kit helps establish the nitrogen cycle, an essential biological process within freshwater and marine aquariums.

Fish waste, uneaten food and decomposing organic material produce ammonia, which can be harmful to aquarium inhabitants.

Beneficial nitrifying bacteria convert ammonia into nitrite and then into nitrate, helping maintain safer aquarium water conditions.

The kit provides both the live bacteria and a controlled ammonia source required to establish and test this biological filtration process.

1. Dr Tim's One & Only Live Nitrifying Bacteria

Dr Tim's One & Only contains living nitrifying bacteria designed to establish beneficial bacterial populations within aquarium filtration systems.

These bacteria help process toxic ammonia and nitrite, supporting the development of a functioning biological filter.

One & Only is designed to help reduce the risk of new tank syndrome and support a more controlled aquarium cycling process.

The formula contains live bacteria without unnecessary additives or sulphur-based odours.

2. Dr Tim's Ammonium Chloride

Dr Tim's Ammonium Chloride provides a controlled ammonia source for fishless aquarium cycling.

Instead of introducing fish to generate ammonia naturally, the ammonium chloride can be added in measured quantities to provide food for the developing nitrifying bacteria.

This allows aquarium keepers to monitor ammonia and nitrite processing before introducing aquatic livestock.

The reagent-grade formula is designed for controlled dosing during the aquarium cycling process.

Available Variations:

Option 1 – Dr Tim's One & Only Freshwater + Ammonium Chloride 60ml

A fishless cycling kit designed for new freshwater aquarium setups.

• Dr Tim's One & Only Freshwater Live Nitrifying Bacteria
• 1 x Dr Tim's Ammonium Chloride 60ml (2oz)
• Application: Freshwater Aquariums

Option 2 – Dr Tim's One & Only Marine + Ammonium Chloride 60ml

A fishless cycling kit designed for new marine and saltwater aquarium setups.

• Dr Tim's One & Only Marine Live Nitrifying Bacteria
• 1 x Dr Tim's Ammonium Chloride 60ml (2oz)
• Application: Marine & Saltwater Aquariums

Option 3 – Dr Tim's One & Only Marine + Ammonium Chloride 120ml

A marine aquarium cycling kit supplied with a larger quantity of ammonium chloride for fishless cycling.

• Dr Tim's One & Only Marine Live Nitrifying Bacteria
• 1 x Dr Tim's Ammonium Chloride 120ml (4oz)
• Application: Marine & Saltwater Aquariums

Option 4 – Dr Tim's One & Only Marine + Ammonium Chloride 240ml

A marine aquarium cycling kit supplied with 240ml of ammonium chloride for customers requiring a larger quantity.

• Dr Tim's One & Only Marine Live Nitrifying Bacteria
• 2 x Dr Tim's Ammonium Chloride 120ml (4oz)
• Total Ammonium Chloride: 240ml (8oz)
• Application: Marine & Saltwater Aquariums

IMPORTANT: The 240ml option is supplied as 2 x 120ml bottles of ammonium chloride, NOT one 240ml bottle.

Variation Comparison:

Benefits of Fishless Aquarium Cycling

Fishless cycling allows the biological filtration system to develop before fish are introduced into the aquarium.

By providing a controlled ammonia source, aquarium keepers can establish and monitor beneficial bacterial activity without deliberately exposing fish to harmful ammonia and nitrite levels.

This helps prepare the aquarium for livestock while allowing important water parameters to be monitored throughout the process.

Dr Tim's One & Only Dosage

The stated minimum dosage for Dr Tim's One & Only is approximately 10ml (2 capfuls) per 10 US gallons of aquarium water.

Always follow the instructions printed on the specific freshwater or marine bottle supplied.

Ammonium Chloride Dosage

The stated dosing guidance is 4 drops per US gallon (approximately 3.8 litres) to produce an ammonia concentration of approximately 2ppm as ammonia-nitrogen.

Actual dosing should always be checked against the manufacturer's current instructions and verified using a suitable aquarium ammonia test kit.

Important: Do not add ammonium chloride to an aquarium containing fish, corals or other livestock.

General Fishless Cycling Instructions:

1. Set up your aquarium with suitable filtration, water circulation and appropriately conditioned water.
2. Ensure the aquarium temperature, salinity where applicable and other water parameters are suitable for nitrifying bacteria.
3. Add Dr Tim's One & Only Live Nitrifying Bacteria according to the manufacturer's instructions.
4. Add the recommended quantity of Dr Tim's Ammonium Chloride to provide a controlled ammonia source.
5. Test ammonia and nitrite levels regularly using suitable aquarium test kits.
6. Continue the cycling process according to the manufacturer's fishless cycling instructions.
7. Monitor the conversion of ammonia and nitrite as the biological filter develops.
8. Only introduce livestock once the aquarium can process the required ammonia load and both ammonia and nitrite have returned to safe levels.

Ammonium Chloride Bottle Sizes:

• 60ml (2oz): Suitable for smaller fishless cycling requirements
• 120ml (4oz): Larger quantity for ongoing cycling requirements
• 240ml (8oz): Supplied as 2 x 120ml bottles

The appropriate amount required depends on aquarium volume, cycling duration and the manufacturer's recommended dosing schedule.

Storage & Shelf Life

Dr Tim's One & Only contains live bacteria and should be stored according to the manufacturer's recommendations.

• Room Temperature Shelf Life: Approximately 6 months
• Cool Storage: Up to approximately 1 year at 10°C
• Refrigeration: Recommended where appropriate
• Freezing: Do not freeze

Always check the product packaging for current storage instructions and expiry information.

Suitable For:

• New freshwater aquariums
• New marine aquariums
• Saltwater fish tanks
• Fishless aquarium cycling
• Establishing biological filtration
• Preparing aquariums for livestock
• Re-establishing filtration following suitable maintenance procedures

Specifications:

• Brand: Dr Tim's Aquatics
• Product: One & Only + Ammonium Chloride Cycling Kit
• Product Type: Aquarium Fishless Cycling Bundle
• Bacterial Treatment: One & Only Live Nitrifying Bacteria
• Ammonia Source: Reagent-Grade Ammonium Chloride
• Available Aquarium Types: Freshwater & Marine
• Ammonium Chloride Options: 60ml, 120ml & 240ml
• Target Ammonia Concentration: Approximately 2ppm Ammonia-Nitrogen
• Application: Establishing Aquarium Biological Filtration

Pack Contents:

• Freshwater 60ml: Dr Tim's One & Only Freshwater + 1 x 60ml Ammonium Chloride
• Marine 60ml: Dr Tim's One & Only Marine + 1 x 60ml Ammonium Chloride
• Marine 120ml: Dr Tim's One & Only Marine + 1 x 120ml Ammonium Chloride
• Marine 240ml: Dr Tim's One & Only Marine + 2 x 120ml Ammonium Chloride

Please Note: The volume of One & Only Live Nitrifying Bacteria supplied should be confirmed against the selected product variation.

Important Information:

PLEASE SELECT YOUR REQUIRED FRESHWATER OR MARINE CYCLING KIT FROM THE DROP-DOWN MENU BEFORE ORDERING.

This is a multi-variation listing. You will receive the selected Dr Tim's One & Only formulation and corresponding ammonium chloride quantity.

240ML OPTION: Supplied as 2 x 120ml bottles of ammonium chloride.

FISHLESS CYCLING ONLY: Do not dose ammonium chloride into aquariums containing fish, corals, invertebrates or other livestock.

Always test ammonia and nitrite levels throughout the cycling process and confirm that the biological filter is functioning correctly before introducing animals.

The time required to establish biological filtration will vary depending on aquarium temperature, water chemistry, filtration capacity and other conditions.

Live bacteria should be stored according to the manufacturer's instructions and must not be frozen.

Always follow the manufacturer's current dosing and application instructions.

Prepare your aquarium for a healthy start with the Dr Tim's One & Only Aquarium Cycling Kit, combining live nitrifying bacteria and controlled ammonium chloride dosing for effective fishless cycling in freshwater and marine aquarium systems.

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