Just in case anyone wants to know, been using our local crushed, sifted, porous, fired red earthenware brick since 1983 or so [ Seramis ?] as an ingredient in my bonsai soils. The other two ingredients are sifted silca based builder's gravel and compost.
If you added the brick to peat moss, at say 1/3, the peat moss is not really able to dry out, as the brick re-wets easily and immediately, also moisturizing the peat moss, and brick doesn't float.
Presently we are going through our drying out winds stage of the Dry Season, and I have to water once in the evening before 5.30 p.m and twice in the morning. Exposure is full sun, 6 to 6. Soil mix handles the gale force winds well - chuckle.
It is amusing to see from the Seramis website, all this excitement. Still the plant on the youtube example was not bare rooted.
Hmm in the 1980's the Germans also marketed an expanded rounded clay as well for houseplant hydroponics.
Back to transplanting and the temperature is still around 68 deg.F at night, the trees are still sleeping/dormant.
From the tropics, good evening.