King British Filter Aid + (Safe Water) 100ml-250ml

2 reviews

Adding King British Filter Aid + (formerly Safe Water) to your aquarium can help remove the dangerous levels of ammonia that have built up in your tank, causing problems for your fish and contributing to algae growth.


  • Filter Aid 100ml 10% OFF With Code
    code: 17945 In Stock (Only 7 left!)
  • Filter Aid 250ml 10% OFF With Code
    code: 17895 In Stock (Only 6 left!)

Product Information

Neutralise the ammonia in your fish tank quickly and safely with this great treatment from King British. Filter Aid introduces a large amount of beneficial bacteria which kick starts the 'cycling' process and matures the filtration process.

King British Safe Water will help you turn the aquarium water into a safe, healthy and crystal clear habitat for both cold water and tropical fish.


  • Partial water changes.
  • Introducing new fish.
  • Setting up a new aquarium.
  • Boost the filtration system.

Dosage: Carefully calculate the volume to be treated making adequate allowance for the displacement of water by gravel, rocks and equipment. Invert bottle gently to mix before use. Add 1 capful (4ml) of Filter Aid+ for every 36 litres (8 gallons) of water. When starting a new aquarium or when using in a marine aquarium, use a double dose. Repeat treatment once a week, after carrying out water changes, after using fish medicines, and when adding new fish.

Latest Customer Reviews

  • Rating
    Date 07/06/2021 07:06am
    King British Filter Aid 250ml
    Feefo Logo
    Always use this in my aquariums
  • Rating
    Date 27/01/2021 13:01pm
    King British Filter Aid 250ml
    Feefo Logo
    recommended to us and does what is says (according to the fish anyway 😊)