Aquarium Systems One & Only 250ml

1 review

Aquarium Systems One and Only is a LIVE nitrifying bacteria designed to stop "new tank syndrome" when setting up an aquarium or after a water-change. A very trusted and effective filter bacteria at an affordable price!


  • One & Only - Freshwater 250ml 10% OFF With Code
    code: 217049 In Stock (Only 5 left!)
  • One & Only - Marine 250ml 10% OFF With Code
    code: 216150 In Stock (Only 2 left!)

Product Information

One and Only is composed of 100% nitrifying bacteria. It is to control ammonia and nitrite when starting a new tank, after a big water change or disease treatment. It instantly creates a bio-filter. Our nitrifying bacteria are the result of the latest scientific research and are used by public aquariums and professionals around the world to control ammonia and nitrite.

Latest Customer Reviews

  • Rating
    Date 23/02/2019 07:02am
    Aquarium Systems Dr Tim's One & Only - Freshwater 250ml
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    quick delivery will use again