How To Replace Substrate Without Starting Mini-cycle?

Discussion in 'Freshwater Beginners' started by ethantobey, Apr 21, 2019.

  1. ethantobeyValued MemberMember

    How to replace sand without starting a mini cycle?
    I have a dirted planted tank capped with sand and I want to make some changes but I am concerned about killing off a lot of the beneficial bacteria by removing the sand.
  2. FahnFishlore VIPMember

    Most of your beneficial bacteria are in your filter media. Is this a Walstad setup without a filter?
  3. DonthemonValued MemberMember

    What kind of filter do you have. That is where most of the bb live. I just changed my sand. I added some stability once I was done to give it a boost just in case.
  4. ethantobeyValued MemberMember

    Aquaclear 70
  5. FahnFishlore VIPMember

    You should be fine, just keep an eye on parameters. Keep that filter media running on a plastic container full of tank water!
  6. DonthemonValued MemberMember

    And don’t clean the filter the same time as changing out the substrate.