Monitoring and maintaining proper water quality and levels is imperative in hydroponics since no soil buffers are present. Herbs prefer a pH between 5.8 to 6.5 in the hydration solution. Nutrient concentrations should fall in the 1.2 to 1.6 EC range when growing varietal herbs. Frequent topping up with fresh nutrient solution is key, replacing at least 20-30% of water volume every 1–2 weeks. Completely draining and refilling tanks every month prevents excess salt buildups.