[kevyn chan]

as i have spoken to YG representative earlier, it is confirmed that they grow all their neps in pure sphagnum moss. they also added that, it depends on your growing environment, species and the natural setting of the plants localities however due to tc, clones etc etc, most of the neps L/L, Intermediate and H/L will adapt and do OK to your growing conditions.
as for the watering schedule, it depends on the daily weather and waters only when needed (this is based on their growing condition in CHs and of course they have trained personnel to handle and attending to the nursery whole day/ full shift and not like us, have to work in the office or go to school and left them unattended) sometimes they do not receive sunlight all day long thus watering should be reduced just enough to contain the moisture needed for the plants and humidity plays a MAJOR role in growing our Intermediate and H/L species (depends on the type/species, size and age of the plant) they do not use any supplemental lightings and most important not to water clog your pots!!

p/s; this is based on teleconversation and not being recorded in any form of writing or recording therefore any inaccuracy of data or resulting death on your neps, is purely unintentional and this matter should be treated solely as additional reading materials only.