Red Wiggler Worms (Eisenia foetida) are the best and most common type of composting worm! They produce a large amount of compost in their natural habitats of leaves, manure, compost piles and in many other decaying organic materials. As they feed, Red Wigglers swallow great quantities of organic material, digest it, extract its food value and expel the residue as worm castings, which are very rich in nitrogen, phosphorous and potassium. Red Wiggler worms can process large amounts of organic matter and, under ideal conditions, can eat their body weight each day. They also reproduce rapidly, and are very tolerant of variations in growing conditions. Item quantities are a close approximate and will arrive in various stages of growth Temperature: Red Wigglers tolerate a wide range of temperatures. The ideal temperature range is between 55-77 degrees Fahrenheit. Temperatures below 50 degrees Fahrenheit slow down worm activity. Red Wigglers should be protected from freezing temperatures. Bedding with a temperature above 84 degrees Fahrenheit is harmful, sometimes fatal to Red Wigglers populations. You should also measure the temperature should inside your composter container or pile because the temperature in the moist bedding is usually lower than the outside air. Moisture Content: Red Wigglers need a moist environment. Worms breathe through their skin and must be moist in order to breathe. Aeration: Red Wigglers need oxygen to live. They produce carbon dioxide. Air circulation is a must in and around a worm box.