The heterotypic fish is a kind of large ornamental fish, and when it is mentioned, it has to be admitted that its unique suction cup mouthpiece, strange appearance and variety of color expressions. It is difficult to summarize their characteristics in a few simple words, its peculiar shape is not as cute as a goldfish, its vividness is not as inky as a koi, and its swimming posture is not as overbearing as that of the arowana, but it is filled with a wild and uninhibited atmosphere unique to wild fish!
Characteristics of the heterotypic fish:
The upper lip of the heterotypic fish is narrower, the lower lip is wider, and there is a pair of well-developed lip whiskers at the junction of the upper and lower lips. Most of the shapes can be easily attached to underwater rocks or sunken wood with the help of such a mouth structure, without worrying about being swept away by the current, and the flatter body shape also helps them reduce the resistance they receive in the rapids. Other species that inhabit underwater beaches do not require well-developed suction cups to help stabilize the body, these varieties have smaller suction cups, and some have evolved tiny tentacles on the upper and lower lips to detect food in the sand.
Another feature of heterotypic fish is the bone plate that plays a protective role on the surface of the body. Some of these bone plates are parallel, some are staggered, covering from the back of the head to the tail, some of the adult abdomen of the heterotypic fish species has complete bone plate protection, and the bone plate wrapped by this ancient warrior armor does not hinder the flexibility of the alien fish body, each bone plate is separate and has a leather link with each other, such a structure can make the heterotypic fish body swing very freely.
Xenomorphs can be divided into three main categories, heterosexual, helicopter and elves, including more than 90 genera, more than 650 and delineated species, and nearly 400 newest species that have been discovered and have not yet been finalized. Its origin is limited to central and South American continents. Ecuador and Argentina, which stretch from southern Costa Rica to the southern tip of South America, are produced with the exception of Chile at high altitudes. Heterotypic fish are the most diverse freshwater fish species after Galacinaceae, Cyprinididae and Cicchia, accounting for one-tenth of all freshwater fish species.
Special-shaped fish species:
All heterotypic species are given a corresponding L number, each number representing a newly discovered heterotypic fish. The numbers are arranged in the order in which they were found, in order to make it easier to identify the most recently discovered catfish species that have not yet been scientifically named. For the varieties that have been found so far, they are divided according to the family genus, and the following varieties are common:
▲ "The most powerful heteromorph" - Pseudo-spinosa catfish genus Pseudodancanthicus (tank class)
▲A close relative of the tank class - Leporacanthicus (sub-tank class)
▲ Peacock-like beauty - Scobinancistrus (Peacock species)
▲ As mysterious as the water elves - the genus Hypancistrus
▲ Wood-fed water monster - Panaque, the crown leopard genus
▲ Colorful - Tiger family Genus Peckoltia & Panaqolus (tigers)
▲ Cute - Baryancistrus
▲ Cute as a toy - Parancistrus (Dharma class)
▲ Amazon's water demon Medusa - Ancistrus (bearded catfish)
▲ The protagonist of the underwater forest - the elf family
▲ Different forms - helicopter Loricariinae subfamily (helicopter class)
Other representative heterotypic varieties:
▲ Golden neon Dharma
▲ Queen of pineapples
▲Black Diamond Special-shaped Brazilian Black Diamond
The division of heterotypic fish species is divided according to their families and places of origin, heterotypic fish are mostly distributed in South America, in the strict sense, the rivers of South America are mainly divided into black water, white water and clear water. The Blackwater River belongs to a very old river, the color of the river is brown, this color comes from the continuous decomposition of leaves in an oxygen-free environment, there are fewer heterogeneous fish living here, and correspondingly, the heterogeneous fish in the Blackwater River have relatively high environmental requirements. The whitewater rivers carry a large number of suspended particles with rich nutrients, but the species living here are mostly gray, the color is not very bright, and the special-shaped fish in the whitewater river are only easier to adapt to the domestic environment and breed. The water originates from the older mountains, and the visibility of the river is quite high, and the sunlight exposure is very high, so the fish here are very colorful.
Special-shaped rearing environment and management:
Because most of the special-shapes are more partial to low light, as well as clean water quality, so in the arrangement of the environment is best to strengthen the power of the system, water flow is slightly more likely to have better results; if you can use the upper (or lower) drip filtration is the best effect, in addition, because the special-shape does not have a strong adaptability to changes in pH, so good filtration equipment is also important for the daily management of special-shaped fish.
At present, the special-shaped fish has become an indispensable role in the world aquarium market, and many enthusiasts have been immersed in the breeding and collection of the special-shaped fish all their lives. Many species have long been bred in large quantities in captivity, or even improved, in order to meet the market's needs for heterotypic fish. However, due to the wide variety of species and the difference in adaptability to the human environment, when we decide to choose to raise this large group of "strange guys" with large interspecific habits, it is necessary to have a full understanding and understanding of the alien type.