Traditional Culture Encyclopedia - Traditional culture - The course of ancient fish farming
The course of ancient fish farming
In ancient times, fish farming had to be soaked in clear water before it was opened. The purpose of soaking water is to remove alkali. After dealkalization is completed, water can be injected into it. After water injection, it should be placed in the sun, which is of great help to regulate water quality.
But it will also increase the risk of water bloom, so it is best to raise some aquatic plants. In addition, we should pay attention to changing the water, so as to maintain the water quality, and it is no problem to do these fish farming well.
How can I raise fish well? There are two more points:
1, have a good meal. First of all, the feed should be vegetarian, including animal protein, plant protein, vitamins and minerals. Secondly, you should be able to digest it.
Goldfish is a non-gastric organism, and its nutrient absorption depends entirely on digestive enzymes in the intestine. However, the activity of digestive enzymes is greatly affected by water temperature. The most suitable water temperature is 20-26 degrees.
Therefore, in order to make fish eat well, it is not only required that the feed is nutritious and mixed with meat and vegetables, but also pay attention to the relationship between feeding and water temperature.
2. Choose different water quality, water depth and current speed according to different fish species. Most of the traditional rare species in China have a water depth of 15-30 cm, and the water flow speed is zero or extremely slow. However, koi fish, Cao Jin and some modern species, such as Taishiyu and Liu Jin, have higher requirements on water depth and need a certain flow.
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