she looks just lovely, you may have over watered or just not enough light down there, may i make a suggestion? when i use soil i like to flush once a month to remove any salt build up and to have better control and a clean slate, whether i have issues or not, this keeps the soil PH in check and gets your lined up to absorb the nutrients shes gonna take during flowering, especially when shes this size and bigger she will drink a ton, personally i just like to maintain the root zone as best as possible, is this greenhouse TW? i just chopped down a mother for clones