Phalaenopsis from florist, had a heap of rotted roots which I cut off. I treated with hydrogen peroxide 3% twice. Not sure what to do as looks very unwell. Water or don’t water? Potting media? I had it in an orchid mulch but seemed to not be getting enough air and light. Have now transferred to a glass with terracotta beads. Haven’t watered as am afraid to do the wrong thing!