Corydoras melanotaenia
| Corydoras melanotaenia | ||||||||||||
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Corydoras melanotaenia |
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| Regan , 1912 |
The Corydoras melanotaenia is a freshwater ornamental fish of the genus Corydoras . It can reach a length of about 6 centimeters. Its German name is usually Green , Golden or Bronzener Panzerwels .
features
Like all armored catfish, the Corydoras melanotaenia breathes the intestines , which means that it has to take a breath from the surface of the water from time to time. In the aquarium , it should therefore not be kept in a tank with a closed floating plant cover. As with all armored catfish, its body is protected by a shell made of bone plates and is therefore inedible for almost all predatory fish . Furthermore, it has a striking, shiny yellow color on the belly, fins and back. In contrast, the area around the lateral line organ and the head are colored dark gray.
distribution and habitat
The Corydoras melanotaenia is native to the Río Meta ( Colombia ) of tropical South America. This body of water has the following water values:
Way of life
nutrition
The Corydoras melanotaenia is omnivorous and feeds by looking for algae, detritus , small animals and parts of plants on and near the ground .
Reproduction
In the wild, the armored catfish perform their typical mating behavior after the rainy season , when the water has warmed up again. After the rainy season there are a lot of suspended matter and therefore prey in the water. The animals perform a special mating behavior in which the males circle around females ready to mate and thus perform courtship . The females form pockets with their ventral flippers in which two to three eggs are laid. In the so-called T-position, in which the male positions himself across in front of the female and pinches the barbels of the female with the pectoral fin, the eggs are fertilized. Then the females spawn on a suitable substrate . A female repeats this cycle about ten times until she has spawned all of the eggs. In the aquarium, a female lays around 30 transparent white eggs one after the other, which are stuck to large leaves, stones or other surfaces. The eggs are left unguarded. For targeted rearing, it is therefore better to hatch them separately and raise the young fish separately. These take about 3 to 5 days to hatch. The larvae are very small and partly transparent. Two to three days after hatching, when the yolk sac has been used up, the larvae can eat food (in the aquarium e.g. Artemia nauplii).
Aquaristics
The animals are schooling fish and should be kept in groups of at least ten animals if they are kept in an aquarium . The Corydoras melanotaenia is very peaceful and can easily be socialized with smaller fish or shrimp. The animals keep looking for something to eat on the ground and rummaging through it with their barbels . Accordingly, a soft, not sharp-edged substrate is important (sand is ideal), as otherwise the animals can injure their barbels. It can be kept in tanks from 56 l. The offspring is possible and requires a simulation of a rainy season through strong, abrupt partial water changes with temperature fluctuations.
