Aquasolum

aquasolum™ is a lightweight, porous substrate derived from humic substances and minerals. Humic substances may increase the uptake of micro nutrients. Ingredients: leonardite, rhyolite, biotite, quartz, feldspar, obsidian, and amphibole CONTAINS OTHER NON PLANT FOOD INGREDIENT(S): 1.12% Humic Acid (from leonardite)