Athosanswered grow question 6 years ago First a question, are you sure you are using 11 gallon of soil or is it 11 liters? Either way, stop feeding, is too early, let the plant feed itself from the soil, if you are using 11 gallon of soil, you most probably won't need to feed anything during the whole growth, if you are using 11 liters, you will probably will have to feed after the pre-flower stretch. Those white spots you have, I've had them before when over feeding calcium, due to either a calcium additive or when using hard tap water (city water with too much salts); get a cheap EC/PPM meter and measure your tap water, it should be 200 to 20 PPM at most. You are also over watering, that's what's causing the wrinkle leaves most probably, the water should last 5 days or so and at this point 0,5 gal is way too much, give them 500 cc of water (17 oz) that should do it, when the soil is dry, water again with the same amount, when you notice that the water amount is only lasting 2 days, then double the water amount, that should last 5 days or so again, repeat the process, each time the water amount starts lasting 2 days only, you double the amount. Finally, the wrinkle leaves can also be due to the lights been too close and giving heat stress to the leaves, be sure the plant is not too close (put your hand at plant level below the light, is it too hot? then move the light away 5 cm (2 inches) or so.
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