To expand potting medium: place coco coir discs in a container and pour over 4 ounces of warm water (more may be necessary to completely expand the disc). It will take about 30 minutes to expand to their full volume. Fill the pot with the moistened soil pots and plant your seeds. It might be helpful to cover the pots with plastic wrap, or a clear lid, to keep in moisture and create a greenhouse effect. Fertilizer the plants as necessary. You can transplant the pot and plant together when it’s time.