Ratleanswered grow question 25d ago Yeah, lack of light and fan for strength. The window grown plants I've seen are lanky and not vigorous. The cotyledon provide the energy for root growth and first leaves. Mine never yellow in my grows so suspicious to me although any stress can affect the health. Falling over probably drained her energy, shocked her. Is your soil pre fertilized? I use Fox Farm or Roots Organic that feeds them for 3-4 weeks. Every issue is not always nutrient related. Lack of proper light, heat, humidity and over watering are your biggest enemy at this stage of life