Tiger worms are the best worms you can use in your wormery for worm composting. Supplied in breathable pouches and sent by secure delivery service to arrive in a healthy condition. Due to our storage methods, worms may arrive in a dormant state. They are still happy and healthy but may need a few days to wake up. Our Tiger worms are sent in pouches weighing 250 grams per pack with soil in the pack for their comfort. PLEASE NOTE: Pouches are produced by weight. The number of worms per pouch is dependent on the size of worms. If you are redeeming a Worm Card Voucher, click HERE to redeem your voucher by adding it to your basket and then proceeding to checkout. So why are Tiger worms best for a Wormery? There are three native species of worm which are all good at the rapid processing of dead organic waste into nutrient-rich compost. These are: The Tiger worm, aka the Brandling worm. Proper name Eisenia fetida.  The Bluenose worm, aka Dendobaena and the European nightcrawler and by some as Eisenia hortensis. Proper name Dendrobaena veneta. The Redworm, aka the red wiggler and the Brandling worm. Scientific name: Eisenia Andrei. All are good and will work well in your wormery. But, for adaptability, conditions tolerance, versatility, and composting rate the answer is the Tiger worm. Some Worm facts: Tiger worms are a little more expensive and significantly better than Dendrobaena in Wormeries. Young worms are preferable (hungrier) to older worms. When it comes to composting - the condition, age, size and species of worm is more important than their weight. Tiger worms reach sexual maturity (they are hermaphrodite) in approx 6 weeks. Dendrobaena are more widely available than Tigers as there is an established \'cottage\' industry breeding them for anglers who hook them up as bait. They are also easier to harvest and are usually cheaper. View our new ‘Building Your Wormery Guide’ which includes a step-by-step process for setting up your wormery.