The most reliable way of obtaining foundation stock is from known breeders, or from agricultural institutes. Such parent snails might be more expensive than snails from other sources, but they are better and safer because they have been properly fed and managed from hatching, and have not been damaged during collection and subsequent handling. Once the snail farm is established, farmers should select breeding stock from their own snails. Breeding stock must be selected in the wet season preceding aestivation.
It is recommended to use sexually mature snails, weighing at least 100-125 g, as first breeding stock. Farming should preferably start at the onset of the wet season, because that is the time snails normally start to breed. Snails are active at night and on cloudy or foggy mornings. During the day they tend to keep well hidden, so it is best to collect them at night or early in the morning, when the sun is low and the humidity high.