Can silver arowana be mixed with black-spotted water tiger?
Silver arowana cannot be mixed with black-spotted piranhas.
Silver arowana, also known as silver hairtail fish, silver boat fish, and dragon spit fish, is native to the Amazon River Basin in South America, the Nile River Basin in Africa, and other places in Australia and Papua New Guinea. Silver Arowana generally inhabits tributary pools and submerged bushes on the shore. Sometimes it can be found in water environments with floating grass. Later, it flowed into my country. Silver Arowana has been successfully bred in the south. It is one of the main ornamental fish in my country. Silver Arowana is quite popular in Southeast Asia due to Feng Shui requirements.
The body of the silver arowana is long and belt-shaped, with flat sides and a fan-shaped tail. The dorsal and anal fins are belt-shaped and extend backward to the base of the caudal peduncle. The lower jaw of the Silver Arowana is more protruding than the upper jaw and has a pair of short and thick barbels. Five rows of large scales are neatly arranged on its wide fish body, which shines with silver light when illuminated by light. Each fin reflects a red or orange luster under light. The body color of juvenile fish is bluer; both the dorsal and anal fins have red-blue edges. The edges of the golden dragon's scales are golden yellow, and each fin is golden red. The body color of the red dragon is golden yellow, the edges of the scales are golden red, the mouth and gill cover have dark red patches, and each fin is dark red. The body color of the silver dragon is silver-white, and the body color of the black dragon is silver-white with a slight light bluish-purple color, and each fin is basket black. The body length of arowana can reach 50 to 100 centimeters.
The Silver Belt has a very slender and thin body shape. The mouth is positioned upward, and the cleft extends to the posterior edge of the eye socket. The lower jaw is more protruding than the upper jaw, with several linear lateral line organs lined up in front. There is a pair of tentacles at the end of the snout. In wild individuals swimming in the natural environment, the tentacles of adult fish can extend to 3-4cm, but individuals under artificial breeding often can only grow to 1-2cm due to stunted growth. The teeth of the lower jaw are very developed, and the conical teeth arranged like combs between the upper and lower jaws are very small and sharp, and the intervals between the teeth are very narrow. Not only the premaxillary bones, but also the dentary bones, the parasphenoidal bone of the mouth cover, and the structural bones of the tongue are very developed. They were developed to crush large crustaceans and beetles in one bite. In addition, the upper and lower jaws are more focused on the hunting function of easily catching prey rather than the biting force of their teeth. Gill rakers develop into spines. Gululu's big eyes are close to the front edge of the roof of his mouth, and his eyesight is very good. The muzzle is short. The nostrils are located above and in front of the eyes, very close to the tip of the muzzle. The dorsal fin and anal fin are very long, and the starting point of the anal fin is further forward than the dorsal fin. The first spine of the pelvic fin extends even beyond the starting point of the anal fin. The pectoral fins are very developed. In particular, the long and powerful first spine is the weapon that the silver belt uses to jump out of the water. This wonderful flying power has earned the silver band the reputation of "jumping fish" in South America.
The sides of the body are covered with five rows of large and beautiful round scales. The lateral line runs from the top of the posterior edge of the gill cover behind the head to the caudal peduncle. Body height is approximately one-fifth of body length. The body height of a five- to eight-year-old male fish, which is about 90 centimeters, is much larger than that of a female fish.
Silver white is cleverly mixed into the gray-green body. If krill are fed to young, sub-adult and adult fish in rearing, due to the effect of carotenoids, red horizontal bands will be inlaid on the dorsal and anal fins, as well as the scales on the sides of the body. The outer edge will also turn red. When the fish matures, the red gradually becomes lighter and becomes smoked silver or white gold. The edges of the dorsal fin and anal fin are more white, making the already huge body look even bigger. Due to gender differences, the female fish is slightly darker in color and looks dark in color. The back, both male and female, is gray-green, which is very comfortable when viewed as a background color. However, the strong mirror phenomenon on the side of the body makes it difficult to distinguish male and female fish under light except during the breeding period. There are also a small number of albino individuals with so-called platinum-gold and silver-banded color variations among the cultured individuals.