How does your product perform if I mix with pumice or perlite or other additives?
Our products are designed for use without additional additives (aside from nutrient fertilizers), so we cannot say with certainty how our products will perform when mixing at home.
If you are looking for a product with a lot of drainage, we do have a perlite-heavy blend called BIOLITE.
You can find more information about out BIOLITE here: https://www.bio365.com/biolite