Feeding on a variety of vegetable material, the European nightcrawler is very easy to care for. The worms are typically kept in small containers of moist potting soil and should receive food three times a week. When caring for earthworms for fishing, research has shown us that night crawlers do not like the cold. If you plan on fishing in the early or late spring, fall or winter months, it is best to keep them cool and feature lighting such as fluorescent lighting that is not too hot. An indoor refrigerator out of sunlight will do just fine to cool your worms before a fishing trip. The colder they are the longer they will live and stay alive until you are ready to use them for live bait fishing.
European Night Crawlers are a species of earthworm and do not require the use of fish food or cornmeal. The worm's health is dependent on moisture, which you can maintain by choosing a clean, moist location in which to store the worm bins. A bin that is overfilled with worms or lacks adequate ventilation will not maintain a healthy environment. Caring for European night crawlers is a very basic process.