Qualities Of Water

The main and only element of surviving the fish is water. The water of pond must have the characteristics to meet up the biological demand of fish. Because the physical, chemical and biological qualities of water influence the living and control the production of fish. The qualities of water is also depends on the physical and chemical qualities of soil. There is a favorable rate of physical, chemical and biological qualities of water for surviving, food consuming, body growth, breeding and for managing efficiently other important metabolic tasks of fish. This favorable rate of physical, chemical and biological qualities of water are described below.
Physical Qualities
Physical qualities of water are listed below.
Physical Qualities Favorable Condition for Surviving and Growing
Depth of Water
Agonized Pond 1-1.5m
Minnow Pond 1.5-2m
Storage Pond 2-3m
Transparency of Water 25cm
Temperature of Water 25°-35°c
Water Color Slightly Green
Sunlight Presence of Sufficient Sunlight
Chemical Qualities
Chemical qualities of water are listed below.
Chemical Qualities Favorable Condition for Surviving and Growing
Dissolved Oxygen 5-8 mg/Litter
Dissolved Carbon dioxide 1-2 mg/Litter
Alkali 100 mg/Litter
Acidity- Ph 7.5-8.5
Phosphorus PPM 0.5-1.0 mg/Litter
Nitrogen PPM 2-4 mg/Litter
Potassium PPM 1.0 mg/Litter
Biological Qualities
Biological qualities of water are listed below.
Biological Qualities Favorable Condition for Surviving and Growing
Floaty Plants The water would be free from floaty plants.
Sunk Plants There are some sunk plants in the water which are very harmful for fish farming. Remove those from water.
Alga/Moss Water will be free from all types of alga or moss.
Diseases The water will be free from diseases.
Plankton Presence of plankton is favorable for fish farming. Plankton will be available in the water in moderate rate.

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