Tiger Worms are the best worms you can use in your Wormery, Supplied in breathable pouches and sent by secure delivery service to arrive in a healthy condition. Our Tiger Worms are sent in pouches of approx 100-120 worms.PLEASE NOTE: Pouches are produced by weight. The number of worms per pouch is dependent on size of worms.So why are Tiger worms best for a Wormery? The short answer:- 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. The scientific name: Eisenia fetida The Bluenose worm, aka Dendobaena and the European night crawler and by some as Eisenia hortensis. Proper name Dendrobaena veneta The Redworm, aka the red wiggler and the Brandling worm. Proper 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 but not overwhelmingly 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.