Cacti are notoriously easy to grow. They require little to no attention to be healthy and can go days without water. While a suitable plant for many homeowners, cactuses can suffer from yellowing. This often indicated that you’re doing something wrong.
Your cactus will turn yellow if left too long without direct sunlight. Leaving it on the window to be blasted by sunlight isn’t a great option as well. If left for too long on direct sunlight, cactuses could develop a yellowish tint.
The placement of your cacti is important, and you should know the signs of too much, or too little direct sunlight.