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Dr Tim's Aquatics


Dr Tims Aquatics 60ml Ammonia Chloride - Aquarium Fishless Cycle

Dr Tims Ammonia Chloride is the start for a fishless cycle and use in conjunction with the Dr Tims One and Only to get the start up that you need for a stable aquarium.


  • 60ml bottle of reagent grade ammonium chloride for use when fishless cycling.
  • Concentration is 2 mg/L of total ammonia-nitrogen (TAN). Dose 1 drop per 1 litres of aquarium water.

  • Generally during a fishless cycle one needs to add ammonium chloride to their tank 3 or 4 times so this bottle is enough ammonia to cycle aquariums up to 350l litres.

    Some conversions:

  • 1 teaspoon equals about 5 ml which is 100 drops.
  • 1 tablespoon equals almost 15 ml which is 300 drops

  • Ideally add 4 drops per 4 litres.
  • Using a test kit the preferred level is 2ppm of Ammonia in the reading.
  • Do not exceed 5ppm
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