Fish water as a fertilizer?

Discussion in 'Gardening Other' started by CariAnn88, May 6, 2014.

  1. CariAnn88

    CariAnn88 Seedling

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    I have read online that you can use fish water as a fertilizer for plants.

    Does anyone use it? And if so is it any good?
     
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  3. cherylad

    cherylad Countess of Cute-ification Plants Contributor

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    Whenever I clean my aquarium (maybe once a year) I use it to water my plants. I'm not sure how much "fertilizer" the fish produce, but there is some.
    And it's free water, right?
     
  4. CariAnn88

    CariAnn88 Seedling

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    Cherylad - My other half cleans our fish tank twice a week. So instead of throwing the water away I might as well use it on my vegetables.
    I am not sure how much fertilizer it produces either. I guess I am going to have research more of this and find out.
     
  5. waretrop

    waretrop Strong Ash Plants Contributor

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    You are right. Used fish water is wondercful for plants. Not just the clean out but just a water change. There are dissolved nutrient in it.
     



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  6. eileen

    eileen Resident Taxonomist Staff Member Moderator Plants Contributor

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    CariAnn we used to use our dirty fish tank water on the garden and the plants seemed to thrive on it. We also dug any dead fish into the soil and let them feed the plants too.

    Here's an website about used fish water that you might like to read:

    http://www.examiner.com/article/reuse-f ... fertilizer
     
  7. CariAnn88

    CariAnn88 Seedling

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    Thanks Eileen. So I really don't need to buy shop bought fertilizer then. :)
     
  8. cherylad

    cherylad Countess of Cute-ification Plants Contributor

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    What size tank do you have and how many fish?
    Just curious as to how much fertilizer will be in the water if he's changing it twice a week.
     
  9. CariAnn88

    CariAnn88 Seedling

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    40ltr tank. And we have 7 Cardinal tetra and 6 Danios
     
  10. CariAnn88

    CariAnn88 Seedling

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    Sorry I got it wrong it's once a week he changes the water
     
  11. KK Ng

    KK Ng Hardy Maple

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    Yes fish water is very good for plants. In aquaponics plants depend on fish water to grow.
     

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