General concepts, the californian red worm:
Californian red worms can be breed in any place with maximal temperatures around 40°C, and al last, a season with lower average temperatures, and the ideal climes are moderated.
This worms, between 14°C and 27°C reaches the maximum reproduction capacity, so, they'll get more reproduction souring moderated stations.
When the temperature is below 7°C, the worms stop reproducing, but they still produce humus in a lower quantity.
The grown ups weight is about 1 gram and produce 1 humus gram daily, so, they eat an equivalent quantity to his own weight every day, which makes vermiculture very interesting.
Taking the worms out from the vermicompost is a simple process. Just live them one or two days without new food, and after that, put new food beside.
The worms, looking for new food, will go fast to the new place (beside) (50% will get there in a few hour). But the cocoons and small worms will still stay in the old vermicompost, and you'll has to wait about 30 day to get them all in the new place.
If you only wish to sell worms, you can get a lot just putting new food and taking it out the next day. That way you leave the cocoons, small worms, and some grownups to continue the production in the same place. Vermiculture is a business in expansion, and in a closer future, will be indispensable for fields life.
Actually in some places, is bigger the demand than the offer of worms and humus. The only way to restitute fertility in a highly exploited land is with worm's HUMUS. A land that can't be cultivated any more, can be even more productive than his best times, only with the contribution of 100% organic fertilizer, the worm's HUMUS. Besides you can breed just to produce organic fertilizer (humus) for your home, but in this case, you'll get a worm's excess that you'll has to sell, give, or use to make a bigger breeding place.