I am thinking about putting up a large ceramic pot on my porch for a container water garden. I have a few water plants, and I was just wondering if I HAVE to have some kind of air pump or filter to keep the water circulating? If so - would a bubble stone work? Also, do I have to add some kind of vitamins to the water to feed the plants or is it just 'plain water'?

Here is all you need to know about the pumps, and pictures and where to get them...all the way down to pondless waterfalls..enjoy