Today I bought a couple bags of Turface at my local landscape supply house. I have bought Turface before and it was always the large white chips of kilndried clay.
Today I was surprised when I opened the bag and it is a bit lighter than Flora Max. Ill see what it looks like when its wet but I was going to see what my options were for using it after I let it soak in some fertilizers so that it will bottom feed the plants.
Turface is a soil amendment product made from fired fullers earth. A clay product made to help soils for baseball fields mainly. There are other products like this that are suitable for a planted aquarium substrate, like oil dry and Saf T Sorb.
Now all I need to do is buy a 350 gallon aquarium and I am set.