Combined Filter Physics, Biology and Chemistry

The order of installation of filter media a. The first compartment (A) useful coarse cotton filter media to trap / catch coarse particles derived from aquarium water. In the area meant that yellow is the installation of glass mica which has been hollowed out. b. The second compartment (B) bioball media as a medium for growing bacteria. Mucus inherent in ...

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Effect Of Water Alkalinity On Cultivation

To maintain the pH of the water to remain stable at around 6.8 it is necessary a chemical process that is expressed in alkalinity. Alkalinity is the ability estab-bufffer late of bicarbonate ions, carbonate and hydroxide ions in water. The third ion in the water will react with the hydrogen ions so as to reduce acidity or pH increase. Alkalinity ...

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Abiotic Factors Air Quality

1) Temperature / temperature In addition to the high temperatures of the tropics, a problem that is often found is a problem that is too extreme temperature changes due to the influence of the season, for example the rainy season. Low temperatures will cause the speed of metabolism down so that the appetite of fish and shrimp to be decreased. ...

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Fish Virus Spreading in Indonesia

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 ...

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Soil Structure Formation Mechanism

Soil structure can begin to evolve from a single grain of massive form. When coming from a single grain, the development starts from the binding of soil particles form a clump (cluster) which later became ped. There are five main mechanisms that unites these particles, namely: 1. Activities during the growing root penetration. 2. Water movement which followed the direction ...

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Pengelompokan Organisme Tanah

1. Berdasarkan ukuran Berdasarkan ukurannya, maka organisme tanah atau jasad hayati tanah ini dikelompokkan menjadi tiga kelompok, yaitu (1) Makrobia tanah, jika berukuran di atas 10 mm, (2) Mesobia, jika berukuran 0,2- 10 mm, dan (3) Mikrobia, jika berukuran < 0,2 mm (200 mm). 2. Berdasarkan Cara Memperoleh Energi Berdasarkan cara memperoleh energi, mikroorganisme tanah dibedakan menjadi dua kelompok, yaitu ...

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