peace lily leaves turn brown
Why do my peace lilies leaves either turn brown and wither or they turn brown at the tips then yellow, then die? My peace lilies are kept in my bedroom with low light, mostly tv light. Water once per week. Spray with water daily. The leaves turn brown on tips, then turn yellow and die.
You may be overwatering your Peace Lily, don't water on a schedule, water only when the soil is dry.
I would move the plant to a location with a bit more natural light.
Also if you watering with conditioned water, the salts can build up in the soil. Allow the water to sit for 24 hours before using on the plant.
Here is a link to refresh you on the care requirements.