Clay ball mix

For long-term root fertilisation in existing aquariums, you can choose to add clay balls. This mix, just like the commercial version, contains iron and essential minerals in a form that plants can easily absorb through the roots. In addition to loam (at least 90%), this mix also contains real clay with added potassium (without phosphate or nitrate), trace elements (boron, manganese and magnesium), iron (Fe²⁺) and a little peat to acidify the soil on site.

Making clay balls:

• Put some clay ball mix in a container and then add some water;
• Add just enough water to make a mix you can knead and roll into balls;
• Roll the mix into balls about 1 cm across, then dry or freeze them;
• Push the balls into the substrate promptly to avoid clouding the water;

Instructions for use:
Once a year, press one or more balls into the substrate near the roots, depending on the size of the plant. Use them for plants that absorb their nutrients through the roots, such as echinodorus species. Other than our mix, all you need is a container, some water and patience.

Please note: when you pull your plants up, a cloud of the clay ball mix may rise, but this is completely harmless.