Arlithrien
Shohin
Looks like it's on Amazon for $3 for a 3lbs container. Appears to be similar
I'm thinking zeolite added to DE would help aerate and dry faster than 100% DE but if not lava should do the trick. Found some on Amazon thats $3 for a 3lb container, particle size comparable to 8822. Using the listed dimensions to calculate volume, it comes out to being 3x cheaper than the pine bark I was buying on Amazon. And it doesn't break down.Over here DE 100% stays wet way to long.
De supposed to have a low cec level and zeolite a realy high one.
It holds a ton of moisture as well but if you use it to replace the pine bark the pH value of the soul Wil change no doubt about that.
Zeolite ph value should be between 6,8 en 7,2 and bark between 5 and 6 pH so that is quite a difference but unless it's a real acid lover like azalea for example i wouldn't worry about it