Diagnosing Brown Tips on Peace Lily (Spathiphyllum)

Peace lily has brown tips after being in too much sun; owner moved it, watered, trimmed tips. Expert Will Creed lists causes: soil too dry (wilting), hard water, excess fertilizer, insufficient light. Too much sun causes pale/yellow leaves. Recommendations: bright indirect light near sunny window; water just before wilting; use filtered/distilled water if tap is hard; fertilize at half strength monthly. Trimming tips helps monitor new growth.