When you receive your Wabi Kusa ball, the first step is to rehydrate it. This can be done by placing it in a sealed plastic bag with a bit of water, and then place by a windowsill for around 48 hours. The humidity will rehydrate the clay-based substrate, making it ready for planting.
To attach aquatic moss to your Wabi Kusa ball, simply cover the ball in your chosen moss, and then wrap the moss with cotton or nylon thread (or fish fishing line works well too!). The outer layer of sphagnum moss will help the aquatic moss retain moisture. Carpeting plants like Monte Carlo or HC Cuba can also be tied to the Wabi Kusa ball. As they grow they will develop roots.
To add stem plants to your Wabi Kusa ball, choose where you want the stem to go, then poke a small hole around 2-3cm deep into the ball (a good set of fine tip tweezers are perfect for this) and place the stem into the hole.
Once planting is done and the substrate ball is ready, be sure to add some water to the bottom of the bowl. If using aquatic plants that were initially grown in submersed form, it is best to cover the top of the bowl for a few weeks whilst the plants transition into their emersed form. You can slowly start peeling the cover back over the period of a week or two to help the plants adapt to their new environment.