What reason is the flower dragon spits bead leaf yellow?

The yellowing of flower dragon bead leaves is caused by too strong or weak light, too much watering, less fertilizer, and so on. Because the light is too strong, it needs to be moved to the shade place for breeding; because the light is too weak, it needs to be moved to the astigmatism place for breeding; due to excessive watering, it is necessary to properly control the water; due to the small amount of fertilizer, it is necessary to apply fertilizer in time, but not too much at a time, so as not to cause root burning.