Composting Worms, Worm Castings, Nightcrawlers and Worm Bins from Acme Worm Farm

worm castings and vermicomposting



Composting Worms Complete the Process

What is vermicomposting?

Vermicomposting, sometimes called worm composting, is the final phase of the composting process, where compost is turned into dirt. This dirt is dominated by soil microorganisms as opposed to compost microorganisms. Ordinary compost needs to be digested by the soil before it gives its full benefit, while worm castings are as plant-ready as you can possibly achieve in a composting system.

Which type of worm is best for composting?

Eisenia fetida, or red wigglers, are the hardiest, most preferred species of earthworms for composting purposes. Eisenia fetida are very prolific, thrive at high population densities and have voracious appetites. Acme Worm Farm is proud to offer some of the healthiest, hungriest compost worms.


Can-O-Worms Worm Bins

Redworms can consume and convert into castings their weight a week in organic materials.

Designed for indoor or outdoor use, the Can-O-Worms worm bin is made from 100% recycled plastic and will fit almost anywhere. It is 20 inches in diameter and only 29 inches tall when all three trays are in place.

What to Feed your Redworms?

As a guide, redworms will eat anything that was once living. This includes:
It is 20 inches in diameter and only 29 inches tall when all three trays are in place.
• Left over vegetable scraps, fruit and vegetable peelings
• Tea leaves and coffee grounds
• Torn up newspapers, egg or pizza cartons (soaked in water first)
• Crushed egg shells (these will help the ph balance of your worm farm) - and more...

See our new inventory of Garden Accessories:
Wooden Buckets, Barrels, Planters, Cedar Adirondacks & more!

Please do not hesitate to e-mail us if you have any questions.



Compost Worm Pricing: Eisenia fetida

1 lb.........$32

4 lbs........$92

2 lbs........$52

5 lbs........$119

3 lbs........$72

10 lbs.......$225

Shipping to Alaska - please call us for pricing.

All prices include delivery. You will receive your chosen weight in worms - you will not pay for bedding. We guarantee LIVE delivery.

We also carry European Nightcrawlers and Worm Castings


order worms

order worm bins

order supplies

Order online now through our secure server -
we accept credit cards, checks and money orders.

Or place your order by fax or telephone.
Phone#: 520-750-8056 • Fax#: 520-232-3163

Paypal Accepted



  • Home Vermicomposting Page
    Detailed instructions and advice on preparation, care, feeding, maintenance of your composting system.


Acme Worm Farm • 4731 N. Edgebrooke Place • Tucson, AZ 85705 • 520-750-8056