I have a pretty small garden. Flower under 1 400w hps. Usually 6 plants, or a 1-3 plant scrog...keepin it legal in my state. I brew 1g of tea and cut it with 1g water before using. For my needs its enough. What i do, that has been working great for me is this: i have a tall skinny 1g plastic decanter that i got at the dollar store. Is cylindrical and probably 6inches in diameter and 16inches tall. In this, i use a 50g rated aquarium pump. I think the container for me is key. Before, brewing bigger teas in a 5g bucket, i noticed that there would be dead spots where all my ingredients would muck up and go anarobic. You know, that dirty fish tank smell. Now i get nothing but sweet, foamy, aerobic tea. The skinny diameter of my container not only eliminates dead spots where stuff can settle, it also makes my water much deeper, so the bubbles travel further to get to the top of the water, so i get maximum aeration/water contact time...whatever, out of each bubble. I never have any stuff settling at the bottom, and i get good teas and good results. I have no need for anything more than i have now.