Depends, and not the diapers.
Depends on pot size, type of tree, weather, climate, type of akadama most likely as well.
Akadama is widely used in Japan as the soil of choice, or so we are told over and over.
Drainage if it hasn't collapsed is great, as it is roughly 1/8" gravel. It holds water well, but your local climate will dictate a lot, as well as the age of the tree, root mass, sun and wind exposure, etc..
as to wondering if it needs to be watered daily, only you and the tree can answer that question. You need to check it daily, at least for a while, to see how the soil is operating. Check to see when it gets to almost dried out before watering, you may need to adjust to it for timing.