When Ann and Glen Gage downsized from their expansive home and garden in Switzerland to a San Francisco townhouse, one of the things they missed most was the koi pond they’d built and tended for years ...

With the window set in front, it should enhance fish visibility. Still favoring a DIY filter by creating a side fountain with a pump to take the pond water and push it through a chamber of lava rock, ...

There are many types of fish, but not all are suitable for ornamental ponds. Outdoor ponds may suffer fluctuating temperatures because of seasonal climate changes. There may even be an increased risk ...