Yes that's what im looking for. That is exactly what I want to do. Now all I gotta do is find a source for the black sand.......Blasting sand is often coal slag. Sounds bad but is inert and no silica. I have been using it for the past few years mixed with pfs and am pleased with it. The grains are heavy and do not kick up. Bichir OG James F had/has a gorgeous planted Bichir tank with pfs/blasting sand. It is what inspired me.