I am not expert but I can relate my success to you. At first I ran it 15 minutes every 4 hours then as they got bigger I increased it to 15 minutes every 2 hours and then When I started flowering I turned it on all the time. I don't used any attachments to the 1/4 line. Its wide open. I also punched a few holes below the lid to help with aeration. Due to using floranova and it can be rather thick it was less work to pull the bubblers off. ( I hate daily maintence) Also I noticed that my root development increased dramatically when I turned it on full time. As with anything I read all I could and basically had to learn to read the plant as far as water needs. I use a standard pond pump rated at 350gph for a 8 site system. Hope this helps.