To care for your cactus: Cacti like at least half a day to a full day of sunlight, however, if the cactus starts to look yellow, bleached or brown, it may be getting too much light and should be moved to another window. The cactus needs water when the soil feels thoroughly dry to the touch. Don't water if the soil is still damp. It can vary but should be around once a week in the summer and once every two weeks in the winter.
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