Sabangau River in central Kalimantan province, Indonesia

46th place in Biotope Aquarium Design Contest 2019

China. Zuo Chong

Volume: 96 L
Dimensions: 80x40x30 cm
List of fishes: Sundadanio axelrodi、Parosphromenus linkei、Boraras brigittae、Sphaerichthys osphromenoides
List of plants: Cryptocoryne bullosa
Description of decorations: River sand、catappa leaves、longan leaves、branch、Peat soil
Description of equipment: Led lights /air-powered sponge filter
Water parameters: Temperature: 26 °C

pH: 5.5

Hardness: 22ppm
Additional info: Change the water twice a week. A quarter at a time.



Description of the area surrounding the biotope: Sabangau peat swamp forest, home to the world’s largest Orang Utan population and located to the immediate south and west of the city. Type locality is given as ‘Indonesia, Borneo, Kalimantan Tengah, about 3 km south-east of Palangkaraya in direction of Berengbengkel; 02° 16.5 S, 113° 56.6 E’.

Description of the underwater landscape of the biotope: In unaltered habitats the dense canopy of branches above means very little light penetrates the surface of such environments, and riparian vegetation also tends to grow thickly. The water is typically stained darkly with humic acids and other chemicals released by decaying organic materials

Description of the parameters of the habitat: The dissolved mineral content generally negligible and pH as low as 3.0 or 4.0. The temperature varies from 22°C to 28°C, and the hardness varies from 18 to 72 ppm

List of fishes and invertebrates occurring in the nature biotope: Betta,Parosphromenus,Rasbora,Sphaerichthys

List of plants found in the nature biotope: Cryptocoryne,Utricularia

Threats to the ecology: Most of the region’s forests have been cut down and burned, rivers polluted by domestic wastewater, and swamps filled in instead of rubber forests

Sources of information:

Comments of the members of the jury of Biotope Aquarium Design Contest 2019