Hello all! So I'm setting up a 10g Iwagumi-esque tank (Japanese themed overall) and I'm hunting around for substrate. Normally, in a perfect world, I'd love to do a layered substrate, @tommywantfishy has something that I very much wanted to try, but its really expensive to buy all of these substrates to only use a little bit. Buying my hardscape, I found this Mineralized Topsoil Mineralized Topsoil - $5.00 Any thoughts on it? Its a really awesome price, with good reviews, and 1 bag will fill out a 10g. If not, anyone else have any thoughts for a relatively inexpensive substrate for a fairly medium-high tech tank? (I plan to house one of my bettas in it, as well as a pygmy schooling fish) Thanks!