Just harvested, so have to get the rock media ready for the next grow. Removed the major root mat from the bottom of the grow pots and turned the rocks several times. Still large amounts of organic material left, so hit with 2mL/L enzyme, plus a couple of grams of bacterial spores (boo, no Great White available yet). I now have pea soup even with high aeration in the reservoir, but that's to be expected. Have poured the pea soup over the rocks several times to ensure proper inoculation of all organics with the bacteria. Should be ready for flushing and new seedlings in a few days.