I've had this Draecena Marginata for a few weeks and it may be showing some signs of trouble. About 6 or 7 leaves have turned yellow and fallen off. I don't think it's getting too much water, but I've read that they are very sensitive to flouride so going forward I'll be careful to let the water sit out for a few days before watering. It sits between our living and dining rooms, so it has large windows about 15 - 20 feet from it on both sides (north and south). Full disclosure, I'm also wondering if our cats may be tugging at the leaves... they definitely enjoy batting at them from time to time. Can anyone offer insight?