Can you store mulm ?

Discussion in 'Substrates' started by Tony Swinney, 24 Jan 2009.

  1. Tony Swinney

    Tony Swinney Member

    Messages:
    1,192
    Location:
    Cobham, Surrey
    HI

    I was cleaning out my eheim last night, and watching all the lovely mulm going down the drain, and wondered whether it can be stored for future use, or whether its goodness dissipates once its out of the tank system :?:

    Can you dry it out and keep it, or freeze it ? :?:

    Drying it out would be useful when it comes to putting in to a new tank, as you could put it under the substrate, and still spend time scaping without needing to get water straight in there - though it wouldnt be useful it it had become useless :lol:

    Thanks in advance.

    Tony
     
  2. Ed Seeley

    Ed Seeley Member

    Messages:
    3,262
    Location:
    Nottingham
    I think it would be best to use it 'fresh' rather than storing. However drying it our might be a viable option. The reason I say this rather than freezing (aside from the issues of putting muck from the filter into your freezer and the consequences when it's found and you're aksed, "What is this?" :lol: ) is that freezing causing water to expand and rupture cells. Drying may kill off a lot of the microorganisms too but some will survive and some can persist as eggs or dormant stages too. I also find that sponge filters, once matured, are able to be used rapidly, even after drying out completely, to mature and cycle a new tank. A significant proportion of the microorganisms must be surviving for the filter to mature more rapidly like that.
     
  3. Tony Swinney

    Tony Swinney Member

    Messages:
    1,192
    Location:
    Cobham, Surrey
    Thank Ed - what you say makes sense !

    Maybe I'll just make sure not to clean the filters for a couple of weeks before the new tanks arrival.

    Cheers

    Tony :)
     

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