Where did you get your plugs? What are the plastic pieces that you are supporting them with? I tried using a piece of metal screen to support mine right at the water level, but one of the corners came loose while I was on vacation and most of them washed into my water holding tank and then plugged up my little fish tank pump and I can't get it working again. The 3 seedlings that survived died when the pump stopped feeding them. Project is on standby until I get some time to rebuild it.