Mrs. GreenJeans..
Can you explain your setup to me? I am digging on your Folger's cans. I save them, and my fiance never saw any reason for me doing so. Now I can tell him there's a darn good reason LOL!
I'm clueless about hydro. Do your plants sit in water all the time, and then you add nutrients as necessary? How often do you change the water?

Well, The plants are about a 1/2" above the water in the net pots. I add my nutes after about a month...I usually change water after a week of topping off with ph adjusted water..
Each one has its own air stone, cant have enough air...I use small ones to start out, then just put them in the bigger ones as they grow...

Now you have your reason to use all your saved ones...I always used MaxwellHouse coffee cans when I grew in my soilless mix...This is much easier now..Enjoy..