==Field experiences==
In India and elsewhere larger dams or bunds were traditionally built to create ponds or ‘tanks’ to store water. Water seeps from these ponds into fields of crops and every so often the pond is de-silted and the silt used as a fertiliser. Although there has been a decline in these ponds, there are some places where they are being revived.
==Construction, operations and maintenance==
Depending on the site, there are two different types of fish ponds to choose from: diversion or barrage ponds.
====Diversion ponds====
Diversion ponds are constructed by bringing water from another source to the pond.
'''Below are the different types of diversion ponds:'''<br"
A. Embankment ponds: The dikes of an embankment pond are built above ground level. A disadvantage of this type of pond is that you may need a pump to fill the pond.
B. Excavated ponds: An excavated pond is dug out of the soil. The disadvantage of this type is that you need a pump to drain the pond.
C. Contour ponds: Soil from digging out the pond is used to build the low dikes of the pond. The ideal site has a slight slope (1-2%) so the water supply channel can be constructed slightly above and the discharge channel slightly below the pond water level. Since natural gravity is used to fill and drain the ponds, no pump is needed.
==Reference manuals, videos, and links==
