Itani, Amazon River tributary, French Guiana

62nd place in Biotope Aquarium Design Contest 2018

russia China. Wang Peng

Volume: 300 L
Dimensions: 120x50x50 cm
List of fishes: Satanoperca leucosticta, Moenkhausia sanctaefilomenae
List of plants: N/A
Description of decorations: River sand. Driftwood. Oak leaves (withered leaf). Brook stone. Ulmus pumila L (leaves are placed a week before shooting). Populus L (leaves are placed a week before shooting). Origin in China.
Description of equipment: External ATMAN CF1400×2, Netlea Led 50W×2, Ji yin Led 35W×1.
Water parameters: Water color yellowing. PH 6.5, GH 60. 26℃.


Description of the area surrounding the biotope: Itani a river of northern South America rising in the Tumukumar Mountains and flowing northward through tropical rain forests with waterfalls and rapids in the upper and middle reaches. The downstream and the estuary are broad. The river winds northward through dense rainforests, forming the boundary between Suriname and French Guiana, and eventually empties Hallibye into the Atlantic Ocean 30 km below Saint Laurent (French Guiana) and Albina (Suriname). The river has a total length of 724 km, a basin area of 62,000 square kilometers, an average annual flow of 1850 cubic meters per second, and a runoff of 58.3 billion cubic meters.

Description of the underwater landscape of the biotope: The water is abundant and near the equator. It is a tropical rain forest climate with abundant species. The waters are yellowish and muddy, but the fish like the environment. The river bottom is mostly silt, driftwood and deciduous leaves. It is very suitable for fish habitat and breeding. When the rainy season comes, the river floods the river bank, which was originally the habitat of birds. In a flash, it becomes a paradise for fish. During the rainy season, the deepest water level rises about 10M. Many branches insert into the water, and a large number of branches and leaves in the water, creating an underwater forest.

Description of the parameters of the habitat: The sunshine time is about 5 hours in the rainy season, less than 7 hours in the dry season, the water quality is about 6-6.5 in the rainy season, and the temperature is about 24 degrees Celsius. The temperature is about 5 in the dry season. The temperature is about 28-32 degrees Celsius. The GH value is about 10-18.

List of fishes and invertebrates occurring in the nature biotope: Satanoperca leucosticta, Moenkhausia sanctaefilomenae, Hemigrammus ocellifer, Tetragonopterus chalceus, Poecilia reticulata, Pygocentrus nattereri.

List of plants found in the nature biotope: Lemna minor, Pteris vittata L, Staurogyne repens.

Threats to the ecology: When human beings appear in the natural ecological environment, the deforestation of forests and the abandonment of wild fish have seriously destroyed the balance of the natural environment. River pollution, a large number of sand mining, but also a serious threat to the balance of natural ecology.

Sources of information:!/m/dDUBAAAAAAAAnull&bo=FgIsAQAAAAARBwk!&rf=photolist&t=5!/b/dDQBAAAAAAAA&bo=sAQgAwAAAAARB6c!&rf=viewer_4**gTPaJdz.b04NHI3f*VQMRXJkcfl09z*0NEF0gMm4!/b/dC8BAAAAAAAA&bo=7gLyAQAAAAARBy8!&rf=viewer_4*nB4sb7gOUUkbjJHA!/b/dEMBAAAAAAAA&bo=gAc4BAAAAAADB5k!&rf=viewer_4*rXRRXkfQse4LHYxa2YK4!/b/dDMBAAAAAAAA&bo=wAN7AgAAAAARJ6o!&rf=viewer_4

Comments of the members of the jury of Biotope Aquarium Design Contest 2018