[rossb]

I have heaps of links on biofilters. The basic design concept is lots of suface area for bacteria to grow on. The best thing would be bio-balls. but the cost for a 100 gallon filter is expensive. The blinds work well. If you need some tips ... let me know.

I have a 2000 gallon pond with a 25 foot stream and this is my fourth year. I have tried lots of different plants and I now have a few that work. The pond is home to some kindly goldfish and a nice old turtle. I have an indoor pond for the winter and an outdoor one.