Has anyone tried using something like Sera Super Peat for their soil in a wabi-kusa? keto soil けと土 is the traditional product used in kokedama 苔玉. Since keto is peat, and kokedama uses a similar, if not same, substrate ball technique . . . and Sera Super Peat is peat with the same properties as most of the standard aqua soils (minus the added micro-organism cultures) . . . I was just curious what others thought about using something inexpensive, like Sera. One would still have to mix in the sphagnum and maybe even a little lava gravel or akadama 赤玉, it probably wouldn't hurt to add a bacter or tourmaline equivalent for the micro-organism/fertilizer layer. Thoughts?