The dark brown silinder like earthworms castings.
More visible at the side of the pot.
Put some dry leaves and paper cuttings inside the pot for the earthworms to feed on. In about 1 month time, you will see the castings that can use as fertilizer for your organic farm.
All natural earthworms fertilizer ready to use.
This little fellow gonna enter the planeteer hall of fame for saving the earth from pollution and recycle waste into brown gold.