In this video I show aquarium imitating fragment of a stream in Mexico, arranged by Victor Manuel Ortiz Cruz (Mexico) for the final of Biotope Aquarium Design Contest 2014 (held during ZooSphere 2014 in Saint Petersburg, Russia). This tank took the 3rd place in the contest.
Description of the biotope (as written on the information plate):
Valle Nacional River feeds the Papaloapan River (the second largest in Mexico). The shown biotope is a bank stream on Atlantic slope. On its bottom there are grayish and slightly reddish oval rocks and sand, sometimes covered with organic matter and leaves from trees and plants growing on banks. Submerged roots and branches provide food and shelter for the fry of Thorichthys ellioti, which often cohabit with Cichlasoma salvini and Poecilia sphenops. Near the banks there are more wood and leaves on the bottom, while rocks are predominant near the middle with no organic matter in the current. There is almost no aquatic plants here, only small patches of Eleocharis sp., Fontinalis and Fissidens mosses and riverine grass in some parts of the river.