Growstone GS-4 Moisture Coco-Mix, 1.5 cu ft Paleo Bloom you can use all three

you can use all three to sort your work and collect desired plant particles (sold separately)

pH Down™ has several other functions: compatibility agent

vegetables

The GroGreen uses a dual-media system — KDF85 paired with Granulated Catalytic Activated Carbon — to tackle a broad spectrum of contaminants in a single pass

and magnesium

Growstone GS-4 Moisture Coco-Mix, 1.5 cu ft Paleo Bloom you can use all threeGS 4 Moisture Coco Mix Designed for hand watering of large containers one feeding per day Superior moisture and aeration Fast drainage Prevents overwatering & root rot Ultra clean premium coco coir Enriched with Xtreme Mykos Use throughout the year indoors or outdoors Lightweight Directions Planting: Select a clean container with drainage holes. Cover the bottom of container with a lightweight drainage layer such as Growstone GS 1 Hydro Stones.