Moenkhausia sanctaefilomenae, Pilcomayo, Paraguay

128th place in Biotope Aquarium Design Contest 2019

United Kingdom. Piotr Sliwka

Volume: 96 L
Dimensions: 60x40x40 cm
List of fishes: Moenkhausia sanctaefilomenae
List of plants: No plants
Description of decorations: Bogwood, branches, dry leaves, cones, stones, sand
Description of equipment: Filter Sicce Whale 120, Light Biotopia UK 18watt full spectrum led, Heather 150watt Interpet, Skimmer Poundland Solution
Water parameters: 26*C ph5,5 gh8
Additional info: Every week 20% only RO


Description of the area surrounding the biotope: Corresponds to the main channel of the Lower Pilcomayo River, its current meander belt with backwaters, and its short tributary creeks. High water season takes place generally in the summer with neighboring landscapes. Dense gallery forests cover the levees and provide shadow during the day. Panicum repens mats when the river waters are high. The substrate is increases towards the shores.

Description of the underwater landscape of the biotope: The riverbed is blended repeatedly, the bottom is shaped differently, it is mostly sand, tree roots, some plants and in some areas the palm trees, quite a lot of leaves, cones, stones. In the river bend a lot of branches are falling where many fish find shelter.Water turns dark and then thins out changing the color to light.

Description of the parameters of the habitat: The water has a slightly tea color, which owes to the disintegration of plant matter and from the roots and branches, dry leaves, etc…

List of fishes and invertebrates occurring in the nature biotope: Steindachnerina brevipinna, Steindachnerina conspersa, Prochilodus lineatus, Schizodon borelli, Leporinus lacustris, Hoplerythrinus unitaeniatus,Hoplias malabaricus, Pyrrhulina australis, Acestrorhynchus pantaneiro, Serrasalmus maculatus, Moenkhausia sanctaefilomenae, Aphyocharax anisitsi, Aphyocharax dentatus, Aphyocharax nattereri, Charax leticiae, Roeboides descalvadensis, Roeboides microlepis, Cheirodon interruptus, Serrapinnus calliurus, Pimelodella laticeps, Rhamdia quelen, Tridentopsis cahuali,Callichthys callichthys, Corydoras hastatus,Hoplosternum littorale, Lepthoplosternum pectoral, Otocinclus vittatus, Loricaria simillima, Loricariichthys platymetopon, Rineloricaria parva, Sturisoma robustum.

List of plants found in the nature biotope: Echinodorus subalatus, Echinodorus Rataj, Salvinia auriculata.

Threats to the ecology:

Sources of information: Internet, bbc, reuters web page, biotanica, wikipedia, reaserch gate.

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