Tom (or someone familiar with his non-soil method
I read the link and some of your other forums. Thanks for pointing me to it. Being a newbie, I'm still a little confused. Tom mentions onyx sand, leonardite, and peat. How thick of layer do I need of each and in what order? And, can I put my decorative gravel on top or will that disrupt the system?
Also, wouldn't peat have the same issues with NH4 as soil?