Dimensions 65 × 65 × 80 cm

Title Submerged forest in the atabapo basin of Colombia

Volume 338L

Background Black paint

Lighting Led-spotlights 20W*2

Filtration External filter 1230L/H
Internal filter 500L/H

Plants Submerged terrestrial plants and dead woods without aquatic plants

Animals Pterophyllum altum

Materials Dead woods
White sand (0.1mm-1mm)

Additional Information The Atabapo River commonly known as the “river of black water” is a tributary of the Orinoco River. It forms part of the border between Colombia and Venezuela, The river originates in the low plain forests of the transitional Amazon biome and stretches 185 km in length. The basin includes a variety of ecosystems, such as seasonal savannas, basal rainforests, and basal gallery forests. The depth of the river is up to 15 meters. The river is up to 1 km wide. There are heaps of boulders and dense tropical forest on both sides of the river.
The entire Atabapo is underpinned by vast areas of igneous granite rock. There are bare rocks, large and small boulders along the river. The substrate consists of white sand with a fraction of 0.1-1.5 mm and small fragments of rocks. The river passes through the jungle. As vegetation decays, tannins leach into the water, making a transparent, acidic water that is darkly stained. It resembles the dry season with more clearer water.During the rainy season the temperature of water is around 22-26 °C, water pH is about 6. During the dry season, the temperature of water is around 27-31 °C, water pH is about 3.5-4.5.