Hi, Advanced Nutrients' pH Perfect line is awesome because it automatically balances the pH levels of your water. Basically, you don’t have to worry about adjusting pH manually—it keeps the nutrients in the right range for optimal plant absorption. Definitely a time-saver for growers, especially if you’re new to managing pH!
That is a general statement. If you are on well water or have very high pH tap you will still may need to make adjustments. My tap is 8.5. if I use tap I need to lower pH after adding the nutrients. With RO water it is fine with no adjustment needed.