Ellie May Klampett in the old Beverly Hillbillies television show used to go swimming in the "cement pond." Well, that is also an option for the fish in your backyard pond.

Here are the pros and cons of a cement pond:

1. They can last a long, long time, if they are constructed and maintained properly.
2. In recent times, flexible forms have been developed so that the cement pond may be shaped pretty much as you wish.
3. Various color pigments can be mixed into the cement for special color effects.

1. This is the most expensive type of backyard pond.
2. If not constructed properly, a cement pond may be damaged by the alternate freezing and thawing of the soil around it during the winter months. Cracks can be very expensive to fix.
3. Although there is some flexibility in shape, it is not as free wheeling as a flexible liner.