Hi everyone! I have had this tree for a few months now and it was doing great until recently :( All of its leaves used to be completely sticking out straight and now they are all getting droopy! Started with the bottom and now the leaves at the top are slowly drooping as well.

It sits in a corner by a pretty well lit window and I do mist it often. I also occasionally spray it with Safer's insect killing spray for houseplants because recently one my cactus's passed away due to a horrible case of mealy bugs! However, I have yet to see any sign of infestation on this tree. I water whenever the soil is dry two inches down (i just stick my finger in about to my knuckle) and I ONLY use filtered water.. Never tap water. I have killed about three plants due to over watering so i have been very cautious with this one and only water when soil gets a bit dry! Please help :(