Your Peace Lily (Spathiphyllum) declined after two repottings: first into a non-draining pot (fatal error), then into fresh soil (damaging root hairs). The white mold indicated contaminated soil + constant moisture. Fertilizer on damaged roots worsened stress.
Bathrooms are overrated for plants. Humidity spikes only during showers. Glazed windows block light. Fluorescent lights help only if on 4+ hours daily. Peace Lilies need consistent bright indirect light, not humidity bursts.
If bathroom light is truly low: Peace Lily, Pothos, ZZ Plant, Aglaonema. But they still need to be RIGHT at the window.
Recovery takes months. Patience and restraint (no "helping" with fertilizer, repotting, or extra water) are the only medicine.
Repotting a Droopy Peace Lily Correctly
Peace Lily Care Guide: Soil Selection, Watering Techniques, and Repotting Tips for Large Specimens
Troubleshooting a New Peace Lily: Drooping Leaves and Browning Flowers
Peace Lily with Sticky Leaves? It's Scale—Here's the Treatment Plan
Rescuing a Peace Lily After Outdoor Exposure and Overwatering
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