Since they are natural, you can mix them with your existing natural fertilizer.
In fact, Tero activated carbon granules can be used as a soil amendment. It is therefore possible to store them in the same way as your Tero natural fertilizer, or to use them directly in the garden.
These granules degrade much more slowly than natural fertilizer, but are still composed of nutrients that are beneficial to your soil in the long term and are free of harmful elements.