do you have any air circulating.do not water until soil is dry,miracle gro with spray bottle ,spray on plant.try a small fan but not directly on plant.place light close enough to plants so you can feel the heat on your hand when you touch the plant with the palm of your hand.2 or 3 inches from plant.raise light as needed.if it is to hot for your hand after 30 seconds,it's to close.DON'T OVERWATER. test soil for acidity with soil test kit if no results in8 days.good luck.