Here are the best all-around, tried-and-trued, absolutely guaranteed top nine ways to kill your koi. Or not.

The final steps to adding a stream and falls to your water feature are pretty straight-forward. They're also pretty important, since this is the last shot you're going to get at making adjustments before D-Day.

Building a stream with a spillway requires a little planning before you actually begin the excavation. Here are a few tips to help you get started.

When you want your water garden or pond to look as if it were carved into the landscape by nature, consider adding a stream or two.

Adding a pump to your water garden will provide you with clearer, cleaner water more suitable to raising goldfish, koi, and other pond creatures.

An ultraviolet filter can clear up that cloudy green water and keep your fish healthy with a minimum of fuss.

From all the different filters available, which should you choose? You might do best combining several different filter types.

Setting up a biofilter is a quick, inexpensive, and efficient means of protecting your fish from ammonia poisoning--if you do it right.

Chemical filtration is a great way to keep your pond clean of harmful chemicals--IF you use it properly.

Keeping your pond clean often requires filtration. A mechanical filter is by far the most popular, cost effective, and efficient means available.