yeah its peat moss my climate is warm like medeteranian anddddd i water like once every 3 daysDid anyone else notice he's using a 30-10-10 fert twice a week? I'll bet he's only watering twice a week, too.
Can you tell us how often you water and what your climate is like? Are you growing in peat moss?
Anyway, my guess is with that amount of soil the medium dries out quickly. I am also worried about using ferts so often.