Have just done a 12x24 footprint W/ Powersand & Amazonia, used 1x9L Amazonia & 1x2L bag of powersand S .
First time W/ ADA products, very easy to plant, no washing substrate and very clear water on initial fill !!
Try the search for Powersand composition. Cannot help you with that, apart from to say it looks nothing like sand, more like dirty pea gravel??