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Expanded Clay Balls

17 reviews
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Expanded clay balls are pellets of inert clay that have been fired to create small marble-sized balls that can be used in hydroponic growing systems. Also sometimes known as LECA (lightweight expanded clay aggregate) or hydroton.
Applications

Expanded Clay or LECA (lightweight expanded clay aggregate) is an excellent growing medium which can be used in aquaponic farming, hydroponic growing systems, and conventional soil-based agriculture too.

Best used in our Hydropot series, but also a suitable medium for use in flood and drain or nutrient film technique hydroponic systems.

Note: Requires an initial wash to rinse clean. Soak for a few hours and stir around before draining.

For more information on growth mediums, check out our blog post on hydroponic growth mediums.

Specifications
  • Comes in 1L and 5L options of expanded clay balls
  • Clay balls range from 8mm-16mm in diameter
  • Packaged in cardboard (to reduce plastic waste)
  • Easy to use and mess-free
  • Neutral pH
  • Inorganic and inert
  • The surface of the clay has tiny holes all over its surface. This allows better root aeration and increases the available surface area for nitrate crunching bacteria to grow (perfect for aquaponic systems).
  • The nutrient water will dry out before the nutrients have the chance to turn to algae.
Customer Reviews
5.0 Based on 17 Reviews
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Filter Reviews:
    Urban Plant Growers Expanded Clay Balls Review
    04/11/2021

    Clayballs review

    This is the first time I’m using this type of product and so far I’ve been happy with the results. The plants are surviving.

    TM
    Tim M.
    Australia Australia
    Urban Plant Growers Expanded Clay Balls Review
    22/10/2021

    Love this product!!

    Honestly I was a bit skeptical this product, but I really loved it using it with hydro plants and a plant topper to prevent pests does the trick. Would 100% reccommend.

    LS
    Lyzyll S.
    Australia Australia
    Urban Plant Growers Expanded Clay Balls Review
    11/09/2021

    Expanded Clay Balls

    Seem to be helping my orchids and air plants - they are all flowering! The also look great in pots

    KW
    Kelly W.
    Australia Australia
    Urban Plant Growers Expanded Clay Balls Review
    03/09/2021

    Leica

    Still very new with this medium, so far having fun experimenting it as a toper, at the bottom of soils and for hydroponic plants . Will definitely purchase when running low

    AB
    Amelia B.
    Australia Australia
    17/03/2022

    Plants in leca

    I haven't used leca before but I am happy with the results

    AR
    Aimee R.
    Australia Australia
    17/03/2022

    Urban Plant Growers

    So good to hear, Aimee! From the Urban Plant Growers Team.