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    Senior Member Rank = Rokusai smartin's Avatar
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    Jap matting looking like new ?

    Hi All,

    during the summer and during the filters maturing they appeared to get quite dirty and full of debris which i assumed was the biological goodies building up inbetween the fine mesh of the matting, the green matt turning brown and dark, over the past few weeks i have noticed that the matting is slowly clearing out and there is not so much mess between the mesh, i appreciate that i am not feeding so much and there is not so much waste from the fish and the covers are stopping airbourne partiles from landing in the water but i am wondering if i am losing filter maturity due to the cold water, i am going to do a full water test tomorrow to see how that is but quite amazed how clean the japp matting now looks compared to a month ago, they look nearly new again..... is it worth adding live bacteria to the filters during the winter or is that a waste of time ? oh and is it worth to trickle in still ? thanks Steve.



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    Senior Member Rank = Grand Champion RS2OOO's Avatar
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    Quote Originally Posted by smartin View Post
    Hi All,

    during the summer and during the filters maturing they appeared to get quite dirty and full of debris which i assumed was the biological goodies building up inbetween the fine mesh of the matting, the green matt turning brown and dark, over the past few weeks i have noticed that the matting is slowly clearing out and there is not so much mess between the mesh, i appreciate that i am not feeding so much and there is not so much waste from the fish and the covers are stopping airbourne partiles from landing in the water but i am wondering if i am losing filter maturity due to the cold water, i am going to do a full water test tomorrow to see how that is but quite amazed how clean the japp matting now looks compared to a month ago, they look nearly new again..... is it worth adding live bacteria to the filters during the winter or is that a waste of time ? oh and is it worth to trickle in still ? thanks Steve.

    Never used Jap matting as a bio media, but I suspect what you're seeing is normal.

    Had a surprise myself when taking the cover off the Nexus, and all the K1 media has gone from light brown in the summer back to almost white.

    There will be no algae to discolour media, less bacteria due to lack of food, and much less waste in general whether it be fish poo or whatever other organisms live and grow in the pond during summer.

    Guessing your parameters will be fine. Its when you ramp up feeding in Spring that you might see fluctuations.

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  5. #3
    Senior Member Rank = Rokusai smartin's Avatar
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    Quote Originally Posted by RS2OOO View Post
    Never used Jap matting as a bio media, but I suspect what you're seeing is normal.

    Had a surprise myself when taking the cover off the Nexus, and all the K1 media has gone from light brown in the summer back to almost white.

    There will be no algae to discolour media, less bacteria due to lack of food, and much less waste in general whether it be fish poo or whatever other organisms live and grow in the pond during summer.

    Guessing your parameters will be fine. Its when you ramp up feeding in Spring that you might see fluctuations.
    thanks RS that would make sense..... cheers Steve..

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