Biological co2 and diffuser scum?

Discussion in 'Equipment' started by JohnnyWales, Apr 20, 2012.

  1. JohnnyWales

    JohnnyWales New Member

    Location:
    London
    After letting my tank cycle for a week when I was away on business, I came back to find a thick translucent scum over my bubble diffuser???. Any ideas??.


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  2. ShadowMac

    ShadowMac Moderator Staff Member

    Location:
    Grand Forks, ND
    Most likely a natural bio-protien layer/film. Not a big deal just make sure to clean the diffuser regularly to keep it working at its best.

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