I'm doing my first DWC, bubbler. I havent started feeding yet ,the plants are 2 wks old . 2 sets of true leafs. Now I've heard conflicting info. on the subject of when and how to apply nutes. Some say they always wait till 3 true sets of leafs, and some say always start with a light nute solution. Some say just keep adding nutes to the resevior.Some say change it out each feeding. I'm going to be using the GH flora line . Can anyone tell me how they go about using these nutes or even their own nutes Thanks