I'm using Flourite Black Sand as a cap since I already had some on-hand. I'm waiting on my plants to arrive so I can see how everything works out.Has anyone used a non-inert substrate to cap off the mineralized soil?
For example, let's say you use AquaSoil, or Eco-Complete, or Fluorite as the substrate cap. Would this lead to never-ending algae woes?
I ended up with a mix of 2 lbs montmorillite clay and about 6 lbs of soil. I'm heavier in clay than the recipe but it should work fine. I'll know in about one week when my plants arrive. BTW, I used about 1/2 of the mix for my 12 gallon tank.looks great i have a 50 gl tank just getting things for it, how much clay to mix with the soil, thanks