Chuyển cây ra vị trí tối hơn nếu cây dần dần bạc màu. Chuyển cây ra vị trí sáng hơn nếu cây vươn ra hoặc gầy guộc. Xử lý các loài gây hại phổ biến.

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Some cactus varieties do better with indirect sunlight. If your cactus is turning white, yellowing, or spots are turning orange, it likely means the plant is getting too much sun. Move the cactus to a window that gets less direct sun. A cactus that isn't getting enough light may start to grow toward the light, causing distorted or unbalanced growth. Another symptom is a thinning top. Move the cactus to a window that gets more direct sunlight.  To prevent scorching, move a cactus to a brighter location gradually, by moving it closer to the light over a period of a few days. There are a few insects that can be problematic when you're growing cacti, including mealy bugs, scale, and spider mites. To get rid of these pests, rinse or mist the cactus with water to wash away the pests. Insecticides are not often useful at treating these problems. Mealy bugs can be identified by the fuzzy patches they create on the plants, scale looks like raised brown spots, and spider mites will create whitish webs.