Spider plants leaves have been yellowing. I thought she was in a spot with too much sun but that wasn’t the case. She’s in a self watering pot and only water her when she’s dry. So not consistently moist. Had to put diatomaceous earth on her soil because I had a pest problem and wanted to be cautious since she was nearby the issue. In the past her roots were growing through the bottom and now that isn’t the case. Should I dump soil and give her new soil? Any help is appreciated!