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Freshwater Fish Farming: the Pond

By goGreen | October 28, 2011
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Improving your fish

1. You have already built the small described in Booklet No. 27, Freshwater fish farming: how to be and you have grown many fish


Grown fish

2. Your family would like to have more and you have learned at the marked that you can sell more fish if you have them.

3. You would like to grow more fish to and to sell at the market so that you and your family can live Growing more fish is improving you fish farm.


Sell fish

4. You can improve your fish farm by making your old pond bigger. If your old pond was 10 by 10 metres, you can make it twice as big by moving some of the banks. You can make it 10 by 20 metres.


Make a fish farm

5. You can improve your fish farm by building a new, bigger fish pond either next to your old pond


Build a bigger fish pond next to the old one

or in another place.


Build a bigger fish pond in another place

You can improve your fish farm by building more than one pond.

6. But start slowly and carefully. First, build only one new pond. After you have built your first bigger pond and you know how to use it to grow more fish, you can build more ponds and grow fish all year round.

7. After you have built one or more new, bigger ponds, you will need more baby fish than you did before. You may decide to grow your own baby fish so that you will have them when you need them.

8. This is another way of improving your fish farm. You will learn more about it in Booklet No.30.

9. Before you begin to improve your fish farm, you must be sure that:

· you have enough of the right kind of land



The kind of land

· you have enough good water near by



Have enough good water

· you and your family have enough time to work a bigger pond or more ponds.

Planning a bigger pond

Where to put your pond

10. If your old pond was in the right place and you have enough water and enough good land there, you can make your old pond bigger or you can build one or more new ponds in the same place.

11. If there is no room or not enough water near your old pond, you will have to choose another place for your new pond. You must choose the new place very carefully.

Water

12. Your new pond must be near a good supply of water such as a spring, stream, lake or reservoir with plenty of water all year round.


The new pond must be near a good supply of water

13. You must be sure that you have enough water to fill your pond when it is time to fill it and to add more water when you need it.

14. Do not depend on rain- water to fill your pond. When it does not rain, there may not be enough water to keep your pond full the fish may die.


Do not depend on rain- water to fill the pond

15. Your water must come from a place that is higher than the pond so that the water will flow into the pond by itself.


The water must flow into the pond by itself

16. The water should not have a bad smell, taste or colour. It should not be too muddy.

17. The water should not have wild fish in it. You do not want wild fish in your pond because they may eat your fish or keep them from growing.

18. Water from a natural spring close to the pond site is usually good and there will not be wild fish in it.

19. Water from a stream or from a lake or reservoir is usually good but it may have wild fish in it. You will have to be careful that the wild fish do not swim into your pond.

Place

20. It is best to put a pond in a place with a slope or on a hillside because you will not have to dig as much soil to build it. A pond built on a slope is also easier to drain.


Build the pond on a slope

21. Do not build your pond in a place that is so low that it is flooded during the rainy season.

Soil

22. The soil where you build your pond should not be too sandy. Soil with too much sand or gravel in it will not held water.

23. In sandy soil the water will sink into the ground and there will not be enough water for your fish.


Sandy soil

24. If the banks of your pond are built of sandy soil, they will not be strong enough to keep the water from flowing away.

25. The soil where you build your pond should have enough clay in it. Clay soil holds water very well.

26. In clay soil, very little water will sink into the ground, and banks of clay will be strong enough to held the water in the pond.


Clay soil

Testing soil

27. You should test the soil to see if it is good for building a pond.

28. The first test is easy. Take a handful of soil from the surface and squeeze it into a ball.


Test the soil

29. Throw the ball of soil into the air and catch it.


Test the soil

30. Bad soil with too much sand or gravel in it will not stick together and the ball will fall apart.

31. If the ball sticks together well. the soil may be good but you cannot be sure. Now you should make a second test to be sure that the soil is good.

32. Dig a hole as deep as your waist.


Test the soil

Early in the morning fill it with water. Fill it to the top.


Test the soil

33. By evening some of the water will have sunk into the soil.


Test the soil

34. Then fill the hole with water again. Fill it to the top. Cover the hole with boards or leafy branches.


Test the soil

35. The next morning if most of the water is still in the hole, the soil will held enough water to build a fish pond there.


Test the soil

How large should your pond be?

36. It is good to start with a pond about twice as big as your old pond.

37 For example, if you build a pond 15 by 15 metres, the pond will measure about 225 square metres.


Pond’s dimensions

Your old pond measured 100 square metres.


Pond’s area

38. A square pond is easier to build,


A square pond

but your pond can have a different shape to fit the size and shape of your land.


A different shape

39. This book will tell you how to make your old pond bigger. Then it will tell you how to build a new, square pond measuring 15 by 15 metres.
40. When you build a bigger pond, you should try to make it better than your old pond.

41. A bigger pond should have:

· an inlet to let the water into the pond, which should have a screen to keep out wild fish, twigs, leaves and other trash;


Inlet

· an outlet to let the water flow out of the pond so that you can take out all the fish and clean the pond, the outlet having a screen to keep your fish from getting away when you drain the pond;


Outlet

· an overflow to let some of the water flow away when there is too much water in the pond. If there is too much water in the pond, some of the water may flow over the banks and some of your fish may get away. The overflow should have a screen to prevent this happening.


Overflow

 

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