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Type MBV and SEMBV has detected widespread across the pond in Indonesia. The disease attacks the shrimp aged 1-2 months has been stocking. MBV attack is marked by changes in hepatopancreas which became yellowish because of damage. The case hit since 1998 with a death rate of more than 90% within 2 weeks after the symptoms of common assault. While ...

Having a good filter is ideal ornamental fish hobbyists. A good filter will promise a good performance so hopefully aquarium water quality issues can be dealt with perfectly. Aquarium filters are commonly known so far, in particular the biological filter, more made up for an aerobic environment for ease of application. The end result of this type of filter is ...

In the aquatic environment as a medium of live aquatic biota, frequent changes in water quality parameters such as the degree of acidity (pH – element content of H + or OH-), dissolved oxygen (O2), content of ammonia NH3, the acid content of sulfide (H2S), water temperature and others. Changes in water environment can affect aquatic life, especially for water ...

1. Based on the size Based on its size, the soil organisms or biological soil bodies were categorized into three groups, namely (1) Makrobia land, if the size above 10 mm, (2) Mesobia, if the size of 0,2- 10 mm, and (3) Microbes, if the size of <0.2 mm (200 mm). 2. Based on How to Acquire Energy Based on ...

a) The abundance of plankton Parameter abundance of plankton in a body of water can reflect the level of fertility of a body of water. High abundance of plankton that can also show their dominance in the food chain. it can be used as indicators of a body of water. Ways of working : (1) Take the plankton samples that ...

Effect of calcium carbonate (CaCO3) in water can also be expressed as the hardness of the ability of water to form foam when mixed with detergent (soap). On the water has a low hardness will easily form foam when mixed with soap. While on the water that has high hardness would not form foam. Hardness is very important for the ...