Does anyone know why these are so short there under a 300w led at about 20inch and the ppfd is around 450 in the centre humidity is at 50% and temp is 27°c, they grow to big plants in a friends grow but they use different type of light source indoorthey about 30 days old. One has been fimed and the smaller one was in a smaller pot till today,,, and the one on the right top set of suger 🍃 are going yellow around the edges
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they look great I would not be concerned about their height. Honestly I would prefer my plants to be short and bushy especially for growing indoors. This summer I grew 5 clones from the same plant half inside and outside at the same time and each plant matured slightly differently