Calligraphy catfish was opened in 1939. At first it is not called dual band, and tubular, or dugopolski.
As is the case with other aquarium fish, the breeders have selected many varieties of catfish lane, including Albinoni nearly devoid of pigmentation.
On the body of species belonging to the genera Brochis and Aspidoras (close relatives of the genus Corydoras, belongs to the two-lane catfish) also there are two rows of large scales – modified bone plates that protect the body of the fish from the teeth of predators. Because of this all these genera are known commonly as the armored catfish.
The spawning of the various species of catfish are similar, although the methods of fertilization of eggs is quite different. So, to fertilize the eggs, the female spotted catfish to its stigma attached to anus secrete milk male.
Some scientists believe that it swallows the seed, which passes quickly through the digestive tract intact and reaches the eggs, are currently the body of the fish. According to another theory sticky sperm flowing on the belly side of the fish into caviar through the anus.
The female dual band catfish more rounded body shape when less bright than in the male, the color. Spawning occurs during rains, when rainfall changes water temperature, oxygen saturation and transparency. With the beginning of the mating period around females start to clamber through several males. To the attention of a lady, gentlemen gently touch her body with his mustache; then, when the female starts to swim around the stone or beam of vegetation, the males give chase after her. This race lasts until until exhausted the lady won’t give up. At this moment the most adroit of his pursuers becomes her sideways, and then a sharp throw twists around its axis. As a result, the female emits the eggs 2-4, immediately picking up their ventral fins. After about half a minute, the male secretes sperm. The eggs are fertilized, the female attaches to a stone or plant, and then are ready to allocate a new portion of eggs. More parents don’t care about the clutch, providing the germs of its own destiny. Catfish larvae hatch in 5-8 days; their bodies are long, snake-like, and the yolk SAC is very large. It stocks larvae eat more
3-4 days, and on reaching the length of 1 cm become fry, appearance resembling already adult fish. Catfish grow slowly, reaching sexual maturity a year after birth.
With the beginning of each spawning Mature females begin to pursue several males.
The male, throwing around the female, fertilizes the eggs that portion which a partner holds between the ventral fins.
The eggs are fertilized, the female attaches to rocks or underwater vegetation.
Catfish leads a benthic life, in search of food constantly studying sediments. Often hiding in the thick plants.
Catfish, the fish is calm and friendly towards all other species, forms small flocks. He swims in the lower layers of water at the bottom, and most of the time devoting to the search of food. Their elongated snout, which grow sensitive antennae, the fish touches the bottom, catching invertebrates living there. In the food are also particles of plant and animal origin. Nashumevshie prey catfish are being lifted up from the bottom clouds of silt. Frightened, he hides at the bottom, among the dense vegetation, submerged tree roots or between stones. This species can live in water with different oxygen content. When the last very few catfish from time to time swim to surface to breathe atmospheric air. The extracted oxygen from the air is absorbed in a special section of the intestine.
Dual band catfish – Corydoras arcuatus
Sides of the head are large eyes.
Not a very large head in profile appears truncated.
Mi ending with large nasal openings
right before your eyes.
At the end of the extended snout are two pairs of delicate antennae.
Body flattened laterally.
Number of eggs: about 100 Period of incubation: 5-8 days Sexual maturity: 12 months Power: particles of plant and animal origin I lifetime Kolo 4 years in captivity
The first rays of the dorsal fin is noticeably longer than the other.
On the tail of the back is a small adipose fin.
Thin and transparent tail fins stand out by deep excavation. Reproduction and body length: 5-6 cm oviparous
All species belonging to the family of callichthyid, are small fishes, inhabiting the rivers of South America. The body of these creatures is covered with a thin flexible shell, folded large, impinging on each other scales. On the snout of these creatures are two pairs of sensitive antennae, which are the main tool for finding food in muddy water. Very often, catfish can be seen in aquariums.
Catfish Golden, or bronze reaches a length of about 7.5 cm Inhabits the rivers of South America; found in the island of Trinidad.
Catfish speckled, or spotted inhabits the freshwater bodies of South America, and even inhabits shallow ponds and large puddles. Body length up to 7.5 cm
Inhabits the waters of the Indian and Pacific oceans.