What Type of Worms are Necessary?
There are over 4,000 species of identified worms. The species of red worms named above are the most commonly used varieties for worm composting. Also, please remember, there is no such thing as a “hybrid” worm. You cannot use Night Crawlers or common earthworms in a worm bin. They will escape or die in a short period. Night Crawlers require several years to reach reproductive maturity. Red worms reach maturity in 3-4 months.