These are basic care instructions for this species based on my own experience in rearing.
Environment
Achatina fulica [jade] benefits from a slightly warmer and more humid environment than other Achatina fulica subspecies, although they are tolerant of imperfect conditions the growth rate of juveniles and reproductive activity of adults suffers more greatly than their cousins when they are are put under the stress of a less than favoured environment.
Food
Sweet potato, Romaine lettuce, Cucumber, Sweetcorn, Courgette, Marrow.
Cuttlebone or calcium supplement essential.
Substrate
A 50/50 Isopod Card/coir or peat substrate mix benefits from some sphagnum mixed in to aid moisture retention.
Reproduction
Incubation period is 24 days at 22c.
Ova are 5mm in diameter and rounded in shape, laid in clutches of approx 150.
Hatchlings are safe to be left with adults until they reach 1cm in size, which is when they should be transferred to their own enclosure. The hatchlings will quickly foul an adult enclosure and should be kept in an easy to clean container.