: an act of showing someone how something is used or done : demonstration. 1  I saw a demo on how to use the computer program. 2  The salesman gave us a demo of the vacuum cleaner, and it seemed to work very well. [+] more examples [-] hide examples [+] Example sentences [-] Hide examples 3
If however, you are talking about some maggots in a bowl of wet food (either canned food or dry food which got wet or which you deliberately added fluid to) it is a different matter. Maggots come from flies eggs and they take some set period of time to hatch from the eggs.
Maggots can range from 1.25 to 2 inches long, and the creature has tan, yellowish skin. Feed your growing maggots a commercially prepared food. For a large maggot farm, 5,000 maggots or more, replenish food within the container every five days. Additionally, make sure to add small amounts of water or moisture.