• COLOSSAL CLAY Hydroton LECA expanded clay pebbles for hydroponics, lightweight grow medium with excellent drainage and aeration for healthy plant roots.
  • Healthy plant roots growing through COLOSSAL CLAY Hydroton LECA clay balls, hydroponic grow media designed for superior aeration, drainage and root development.
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Colossal Clay | 13-26mm

$9.90
$9.90
Tax included.

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Available In
How To Use

Rinse thoroughly before use in DWC or recirculating systems.
To re-use: wash, rinse and sterilise.
Dimensions

13mm-26mm (approx)
good to know

Can be re-used multiple times before disposing with green waste or adding to your garden.

COLOSSAL CLAY Hydroton LECA expanded clay pebbles for hydroponics, lightweight grow medium with excellent drainage and aeration for healthy plant roots.
Healthy plant roots growing through COLOSSAL CLAY Hydroton LECA clay balls, hydroponic grow media designed for superior aeration, drainage and root development.

Product Details

COLOSSAL CLAY Hydroton (LECA) – Premium Hydroponic Grow Medium

Versatile & Reliable Clay Grow Media for Hydroponics 🌿💧

COLOSSAL CLAY Hydroton (LECA) is a trusted hydroponic grow medium designed to deliver excellent aeration and drainage for strong, healthy plant growth. Suitable for beginners and experienced growers alike, this lightweight expanded clay aggregate supports a wide range of growing applications.

Key Features & Benefits 🌱

  • 💧 Excellent aeration & drainage – promotes healthy root oxygenation
  • 🌾 Natural & biodegradable – made from natural clay
  • 🌍 Environmentally friendly – reusable with proper care
  • 🚫 Chemical-free – no harmful additives
  • 🪴 Lightweight structure – easy to handle and use

Ideal Applications 🌸

  • Hydroponic systems
  • Aquaponic setups
  • Potted plants needing improved drainage
  • Flood & drain systems
  • Continuous feed (Origin-type) systems

How to Use 🪴

  • Rinse thoroughly with plain water before use to remove dust
  • Use as a top dressing to reduce evaporation and algae growth
  • Add as a bottom layer to improve drainage and aeration
  • Ensure pumps are functioning well, as LECA retains minimal moisture

Available Sizes ⚖️

  • 50L
  • 10L
  • 4.5L
  • 1L

FAQ

Q. What is COLOSSAL CLAY Hydroton (LECA)?

COLOSSAL CLAY Hydroton is a lightweight expanded clay aggregate used as a hydroponic grow medium for aeration and drainage.

Q. Do I need to rinse COLOSSAL CLAY Hydroton before use?

Yes, it should be rinsed thoroughly with plain water to remove dust from manufacturing.

Q. Is COLOSSAL CLAY Hydroton reusable?

Yes, it is reusable when properly cleaned and maintained.

Q. Does LECA retain water well?

No, LECA retains minimal moisture, so consistent irrigation is important.

Q. What systems can COLOSSAL CLAY Hydroton be used in?

It is suitable for hydroponic, aquaponic, flood and drain, and continuous feed systems.

Q. Can I use COLOSSAL CLAY Hydroton for potted plants?

Yes, it is ideal for improving drainage in potted plants.

Overall rating: 5.0 / 5 from 2 reviews.

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Reviews

Great product

"I also found this Colossal Clay to be much cleaner compared to other brand and doesn't disintegrate and leave debris that much."

— Corrinne K. (5/5)

Much better than I was expecting

"Previously I used CYCO brand (made in Germany), so I was not expecting much from this brand (made in Queensland), but I was nicely surprised. At the bottom of the CYCO brand I found a few stones and even some dirt. The Colossal Clay seems to be cleaner (even though you still need to wash it before use) and individual pellets are about same size. They could have been smaller, but the quality of the product is good."

— Miro C. (5/5)

Q&A

Warranty & Returns

Please choose your products carefully, as A-Grade Hydroponics reserves the right not to accept returns based on either an incorrect choice or a change of mind.

However, we love happy customers so contact us with your query and we will do our best to accommodate you. If you have queries about a product you would like to purchase, please contact us to discuss your concerns before you buy.

A-Grade Hydroponics will honour all manufacturers warranties subject to the terms and conditions of those manufacturers. However warranty does not cover abuse, neglect, improper care, loss or damage from incorrect usage.

Warranty claims will be processed at A-Grade Hydroponics' discretion as a refund, repair or replacement. If products need to be returned to us for warranty purposes e-mail us at grow@agradehydroponics.com with the receipt/invoice number, date of purchase and a brief description of the fault (including photographs where possible). We will then issue you with a product return number.

All returns should be in original packaging and have the receipt/invoice number, date of purchase, and product return number enclosed. The product return number should also be written on the outside of the package for easy identification purposes.

A-Grade Hydroponics has a strict 'no returns' or refunds policy for liquid products, like nutrients, additives, gels, calibration fluids etc, so please choose these items carefully.

Shipping & Delivery

*All orders are dispatched in unmarked boxes to maintain your privacy.*

DISPATCH AND DELIVERY

Orders are shipped via Australia Post or shipping platform Big Post. Orders are generally dispatched on Tuesday, Wednesday and Friday. Please allow for additional delivery time for remote areas. If you require express delivery, please contact our sales representatives at 03 9555 6667 or email grow@agradehydroponics.com to obtain a quote. 

Couriers will attempt delivery to the specified address. If no one is home to receive the delivery, the couriers will leave your parcel somewhere safe. If there is no safe place, re-delivery or collection will be offered by the carrier.

Due to the increasing frequency of online fraud and theft, we are unable to ship to P.O. Boxes and Parcel Lockers.

SHIPPING COSTS

All freight charges are calculated on weight, dimensions and location. We are committed to keeping shipping charges at a minimum and do not charge handling fees.

Please note: Freight costs are subject to change. Regional areas, large and bulky orders, and tail-lift delivery occasionally incur an additional levy. Should shipping costs need to be amended it will be to reflect the actual charges, and not incur additional ‘shipping and handling’ fees. We will notify you if this rare situation occurs.

A-Grade Hydroponics reserves the right to cancel the order if shipping costs become prohibitive and customers will be issued a full refund.

PAYMENT

All payments must be cleared before dispatch. Payments can be made online via PayPal, AfterPay, PayID or Electronic Funds Transfer. Payments can also be accepted via credit card by phoning 03 9555 6667.

Please allow at least 24 hours for payments to clear.

FULFILMENT OF ORDERS

You will be notified immediately if an item is permanently unavailable, with options for a replacement item at equal or higher value, refund or store credit.

All refunds will clear within 3-5 business days. Store Credits will be issued as an electronic Gift Card to be used online or in-store.

DANGEROUS AND PROHIBITED GOODS

These goods are available for in-store collection only.