, the goldfish is not a mammal, it belongs to the vertebrate animal, is oviparous. Only those that are viviparous are mammals. Ornamental fish are almost all oviparous. Only whales and dolphins are viviparous.
goldfish after breeding 1. Small goldfish: Newborn goldfish are very fragile, so we need to take care of them carefully. Within three days of birth, they generally do not move or eat. Because the nutrients brought from the mother's body are enough for them to digest for a few days. Three days later, they began to swim flat, you can start feeding, just started feeding the best to feed some egg yolk water, feeding up to 2-3 times a day. About a week or so small goldfish can eat feed, but need to pay attention not to feed more at a time, now the small goldfish appetite is very small, and the digestive system is not perfect, feeding too much is easy to die. It is better not to change water too frequently. It is better to use potassium permanganate to disinfect and wash before changing water each time. When changing water, we should also pay attention to the temperature difference. It is better not to exceed 2 degrees before and after changing water.
2. Big goldfish: Big goldfish are very weak and hungry after giving birth, so sometimes they eat their eggs to supplement their strength. After the birth, we need to isolate the big fish from the small fish as soon as possible, and feed the big goldfish more high-protein and high-nutrition food in order to restore their physical strength.
