Water Quality Management In Fish Pond Water Quality Parameters In Fish Pond

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Water Quality Management In Fish Pond


Fish are aquatic animals with special functions such as gills and fins. This distinction
The character created a different fish from other aquatic animals. Good aquatic environment
Healthy fish. Aquatic environments affect growth rates, feed efficiency, fish health, and survival.
A stress-free environment has a good effect on the production system.
1. Oxygen dissolution
The optimal level of oxygen in fish production should be 5 mg / l. Oxygen depletion of water
Rectification is performed by the following aeration method.
 Manual-In this method, the water surface is splashed with a bamboo stick. Help
Dissolve oxygen in the water
 Machine-diesel water pumps are running. The water is pumped
Water bodies cause the dissolution of atmospheric oxygen.
 Aerator-This is a floating device. This mechanical rotating blade stirs the water
It helps dissolve oxygen.
2. Temperature
In an aquatic environment, temperature plays an important role. Optimum temperature range
14-18 degrees Celsius in cold water and 24-30 degrees Celsius in warm water. Tree planting
Pond banks benefit from providing shade results as stratification reduction. At the same time
The beneficial effects of wind mixing and photosynthesis processes are affected.

3. Turbidity
Turbidity is the cloudiness or danger of a fluid caused by a large number of individual particles
In general, it is invisible to the naked eye and resembles smoke in the air. Measure
Turbidity is a key test for water quality. Turbidity is measured with Secchi discs. Optimal visibility
The range of turbidity is 40-60 cm. Turbidity can be controlled by the application of organic manure
500-1000 kg / ha, 250-500 kg plaster or 25-50 kg alum.

4. ammonia
As a rule, ammonia is toxic to fish. More ammonia depends on more pH and temperature.
In ionized ammonia, 0.02-0.05 mg / l is a safe concentration for fish. Here’s how
Used to lower ammonia concentration
Avoid excessive feeding.
Avoid excessive excess
 Ammonia can be removed from the pond using Formalin.
 Water exchange can reduce the concentration of ammonia in the pond.
• Aeration increases DO concentration and decrease Ph, reducing toxicity

5. nitrite
The following are measures to maintain nitrate levels in the water.
 Accurate inventory, feeding and fertilization practices must be in place.
Biofiltration is carried out with special filters.
The pond must be well oxygenated

6. Hydrogen sulfide
At the bottom is a thick layer of the organic precipitate. Toxic to fish. Stresses the fish. attache
Action to control.
 Frequent water exchange is required.
 Lime should be applied to reduce the toxicity of hydrogen sulfide.
7. pH
pH is the concentration of hydrogen ion concentration in water and indicates how acidic it is.
Or basic water. Here are the instructions.
Table-2: pH scale range of water quality
pH effect
4 Acid death point
4-6 slow growth
6-9 best growth
9-11 slow growth
> 11 alkaline death points

8. Total alkalinity
It shows the concentration of base in water and the capacity to accept acidity. lead carbonate
Bicarbonate is the dominant base. 75-300 mg / l is ideal for fish. Low alkalinity rectified with the lime
cure.
9. Total hardness
 Mainly calcium and magnesium make up the water hardness
 60mg / l increases pond productivity and <60mg / l stresses fish. Low harness processing
It can be done using lime.
Bottom Soil management

Fish are aquatic animals with special functions such as gills and fins. This distinction
The character created a different fish from other aquatic animals. Good aquatic environment
Healthy fish. Aquatic environments affect growth rates, feed efficiency, fish health, and survival.
A stress-free environment has a good effect on the production system.
1. Texture
Soil texture should not be too sandy or clay
2. Soil acidity
 The ideal range for soil pH is 6-8.
 Lime is used based on soil pH
3. Floor soil oxidation
Aeration and water circulation are useful
4. Drying pond bottom
The drying period is 2-3 weeks

Other treatment
1. Nutrient removal
Gypsum (calcium sulfate) -100-200mg / l and 20-30mg / l alum has low phosphorus concentration
In the pond water
2. Phytoplankton removal
 Insecticides are used to reduce the abundance of phytoplankton in intensive culture.
Reduce 1/100 cuso4 of total alkalinity using copper sulfate.
3. Chlorination
4. Water exchange

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