How would measuring the weight account for the plant growing in size and weight? You can also use a peristaltic pump for accurate watering and adding in nutrie

How would measuring the weight account for the plant growing in size and weight? You can also use a peristaltic pump for accurate watering and adding in nutrients, or adjusting pH. Sparkfun even has a kit (https://www.sparkfun.com/products/12915 https://www.sparkfun.com/products/12915) for its automated bartender.