Planted Tank Obsessed
Join Date: Jun 2010
Location: Des Moines, Iowa, USA
If it is the Organic Choice Potting Mix, you can just dump it in the tank and cap it with 1 inch of gravel or you can mineralize it first. You don't want the regular Miracle Gro potting mix or any of the others because they are just perlite, vermiculite, peat, and bark + fertilizers. Miracle Gro Organic Choice Potting Mix is well composted and doesn't have inorganic fertilizers added.