What water its better to use for cannabis plants?

Light, water and soil. A plant does not need anything else to grow green and healthy. Also marijuana, for many nutrients, fertilizers and appliances for indoor crops that exist today in the market. It does not mean that we are disregarding all the existing supplements, nor the modern machinery that helps to facilitate the task of the grower, but if we focus on that and neglect the main elements so that cannabis grows properly, we will be committing a serious mistake.