I finally have my Barrel Pond/fountain setup. What started as one barrel has become 2 barrels and a large terra cotta clay pot in series and another separate pot with fountain. I guess this is what happens when a plant addict try's something new. :-D I set up one barrel on my patio the next (with a spill lip) is one step up on the deck and next to that I set up the pot on a plant stand with 3 pot legs and a large saucer. The pot is set up as a biofilter with a bubbler fountain up through the middle and I have 3 types of Lysmanchia circling the edge. I files a notch in the saucer (an idea I saw at Home Depot) for the water to spill into the top barrel. In the top barrel I have Sweet flag, a mini papyrus and a square basket with my houttunyia, a lysmanchia and crystal confetti pennywort (Hyrocotyle sibthorpiodes). The basket is pushed up against the spill lip to keep some salvinia and duck weed from floating out. In the bottom barrel I have a hardy water lily, a large spiral rush, a yellow flag iris, a large leaved bushy pennywort to hide the tubing coming out of the barrel, and some salvinia, duckweed and water lettuce. I also have my 2 shubunkin goldfish in this barrel. On the spill lip between the barrels I had to put a large, pretty rock to keep the lipped bowed enough so I don't get water running back under the liner. On top of the rock I have a little fish water spitter. It took about two days to get the flow regulated so that the clay pot didn't over flow and drain the lower barrel. Boy, is it a delicate adjustment. I hope it won't be so sensitive once the filter medium has a good build up of bacteria on it. The only thing left to add are a couple more fish in the top barrel. I would love to use Paradise fish but I'm afraid it may get too cold at night for them. I left my aquarium thermometer in that barrel over night and the temp was 55 degrees this morning. I'm not sure I want more shubunkins, these two may eat me out of house and home, they are voracious eaters. Any suggestions for pretty fish that will take such cool temperatures? I will have to bring them inside in an aquarium for the winter so koi are out. Terry E. WA.