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Goldfish are gregarious, displaying schooling behavior, as well as displaying the same types of feeding behaviors. Goldfish have learned behaviors, both as groups and as individuals, that stem from native carp behavior. They are a generalist species with varied feeding, breeding, and predator avoidance behaviors that contribute to their success ...
Like ranchu, the bubble eye goldfish lacks a dorsal fin and has a double tail. [4] They normally grow up to 3 to 4 inches in length. If one of their "Bubbles" pop due to pressure or collision with a sharp object, there is a risk of infection where the inside of the sac has been exposed.
The common goldfish are often confused with comet goldfish, a distinct breed. The two breeds are often mixed together at many pet stores and aquarium stores. They breeds differ in the relative size of the body and fins. The comet goldfish has longer fins but a shorter and slender body size, and thus resembles tracing comets. The most ...
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Goldfish. Goldfish, like all cyprinids, are egg-layers. They usually start breeding after a significant temperature change, often in spring. Males chase females, prompting them to release their eggs by bumping and nudging them. As the female goldfish spawns her eggs, the male goldfish stays close behind fertilizing them.
Flowerhorn breeding resulted in culling of surplus and deformed fish, some of which were dumped in the wild in Malaysia and Singapore, where they survived and disrupted riverine and pond ecosystems. [3] [4] Like most other cichlids, flowerhorns are aggressive and can breed quickly, competing with and eating native fish. [5]
Assorted goldfish. This is a list of goldfish varieties and their characteristics. Currently, there are about 200 breeds of goldfish recognized in China. [1] Selective breeding over centuries has produced several color variations, some of them far removed from the "golden" color of the original fish. There are also different body shapes, fin ...
Breeding" males are colored black with iridescent blue spots. [4] Males have black fins with or without brown spots. [5] Male bodies may be black, brown, or dark green with blotches or spots. [5] A few indistinct dark bars may be present on the male body. [5] Males may have brassy or blue-green iridescent scales scattered across their bodies. [5]