Expanded clay pebbles are a type of lightweight aggregate that is used for hydroponic and aquaponic systems. The pebbles are made from a type of clay that is mined, then heated in a large rotary kiln at a very high temperature. The high temperature causes the clay to expand, creating a lightweight, porous, and highly absorbent material.
Expanded clay pebbles are an excellent choice for aquaponic and hydroponic systems because they are easy to use, provide great drainage, and are pH neutral. The pebbles are lightweight, so they don’t compact or break down like other substrates, and they help to keep root systems oxygenated and healthy. The pebbles are also great for retaining moisture and nutrients, and they provide an ideal environment for beneficial bacteria to thrive.
Expanded clay pebbles are also relatively cheap and can be reused over and over again, making them a cost-effective and eco-friendly choice. The pebbles can easily be cleaned and sterilized with a 10% bleach solution, making them a great choice for anyone looking for a low-maintenance and sustainable growing medium.
Overall, expanded clay pebbles are an ideal choice for anyone looking for a lightweight and effective medium for their hydroponic or aquaponic systems. They provide excellent drainage and aeration, retain moisture and nutrients well, and are cost-effective and environmentally friendly. If you’re looking for a great medium for your system, expanded clay pebbles are definitely worth considering.