Goldfish is one of the common ornamental fish. It is a fish with a wide range of temperature. It can adapt to a wide range of temperature. Therefore, it can be raised without a heating rod. There are many varieties of this fish, the shape of different varieties is very different, as omnivorous fish, daily can choose to feed a lot of feed, but pay attention to the dosage.
Koi carp is also a eurythermal fish, so it has a wide range of temperature adaptation and does not need to maintain a constant temperature. However, it should be noted that due to the large size of Koi, the demand for oxygen is very high, so if you want to raise it, you need to prepare an oxygen pump and give it oxygen for 2-4 hours a day.
Chub mackerel, also known as square fish, is an omnivorous fish. It generally inhabits places where the current is slow. Its range of activities is relatively small, and its waiting time is not long. This fish is widely distributed, so it has a strong ability to adapt to temperature, and it does not need heating rods to raise it. It usually feeds on algae, but also on insects and other foods.
Baiyun Jinsi generally inhabits streams in mountainous areas and is relatively lively. Although it basically lives in the south, it has strong cold resistance. Even in water of 5 ℃, it can still live normally and can be fed without heating rods. As an omnivorous small fish, it mostly feeds on zooplankton and humus.
