Question: what is the difference between a nightcrawler and a worm?
Answer: Red worms or compost worms are a species of earthworms that are reddish-purple in color and 2 to 3 inches long. ... On the other hand, nightcrawlers include several species of earthworms that are much larger and less reddish when compared to red worms. Their main feature is their feeding habits on the ground at night.