Yes my favorite Spongebob episode is when the nematodes (microworms) eat his house. They are portrayed as white worms that eat everything in their path. This is a very true portrayal. They need lots of food and dampness, but they will not get out of control and eat your house!
Here is a list of the things you will need to start your microworm culture:
Starter culture
Potato Bread
Brewers Yeast
Glad plastic containers (come in packages of three in the storage isle at your local food store)
Water
Cut a slit on the top of the container to let air into the culture. Take three pieces of potato bread and shred it up into the container. Add enough water to give it a �sponge-like� consistency. Sprinkle the yeast on top and add your starter culture. In about three days you will know if you culture took. Little white worms will start to creep up the sides of the container. Yummy!!!
Harvesting them is a breeze, just take a q-tip (or some people use their finger, gross!!!), and wipe the sides, then stick it into the tank and watch the cloud of worms fall. Munchies for all! I usually feed my fry the worms from 2 days after hatch to one month. At around 2 weeks, I include other food, such as egg powder or fry powder, but the smaller fish seem to still want the microworms.
Keeping your culture going is also easy. You will notice it start to dry out or production slow down, just add another dusting of yeast and a little water. Multiple cultures going at once will prevent loosing the entire feeding system. So after one goes bad, start another, have three or so going at once. Starting another is easy, just scoop about a teaspoon of bread from the active culture and spread it on top. You will never need to buy a culture again.