Aqua Soil is a pretty nice planted substrate from what I have read. But on the Planted Tank forum, there have been sever people who have had their Amazonia II turn straight into "brick dust" right after contact with water. I have though about getting some for my tank, but I never felt like pulling out everything to change substrate.
For fish, you could have maybe a trio of angels, 3+ GBR (depending on amount of hiding places), and a large group of peaceful schooling fish like rasboras. And then maybe a pleco if you want.