Phalaenopsis, or moth orchids, are one of the longest flowering orchids for indoors, but light levels are important. They love the light but not direct as it might burn them. Never let the orchid sit in water as it will rot the roots.
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Light: Bright light, not direct sunlight
Water: Water your orchid once a week and then allow it to dry out a little before watering again.
Temperature: Warm and humide