Aerobic conditions in a compost bin are desirable. Aerobic organisms use oxygen to carry out their life functions. Because oxygen is present, the bin will not smell. Anaerobic does not require oxygen. Under anaerobic conditions, a compost bin will smell.
Anaerobic organisms can grow without the presence of oxygen.
Bedding materials like newspaper and leaves used as an organic medium for worm composting. Browns carbon rich compostable materials. Usually dry as well. Cocoon worm eggs or egg cases, they can carry from 2 to 20 worms. Compost the end result of the composting process or the process itself.