金鱼养殖的三个注意事项

金鱼（详细介绍）

金鱼养殖最重要的是注意水质。对于金鱼来说，如果它们想要健康地生长，水中的溶解氧、水位和水的变化在养殖中非常重要。只有澄清这些问题，金鱼才能在季节变化时避免健康问题。

1、溶解氧含量

天然水中的溶解氧含量相对较高。天然水是指河流、湖泊和海洋，可达到8-12 mg/L。但在人工饲养条件下，鱼塘和鱼缸的开口面较小，光线受到一定限制，饲养密度相对较高，因此需要安装气泵充气以增加溶解氧。如果养鱼密度小，曝气器每天可以运行8小时左右。如果密度高，应该保持24小时

除了氧气，还有一个条件：光照，这对水质的转化和水草的生长有重要意义。阳光中的紫外线也有杀菌作用。因此，光线可以用来补充缺乏光线的室内水箱，并可以安装紫外线灯，每天照射几个小时，以补充阳光的不足。

2、水位

游泳量大的金鱼一般会使身体更长、腹部更平、尾巴更短、更细，并且头部特征退化并变得尖锐。此外，我之前看过鱼友的一篇帖子，说喂养金鱼的最好方法是用淡绿色的水和少量浮游藻类。这非常重要，有利于金鱼的鲜艳颜色。如果水太深（超过50厘米），我恐怕看不到鱼。（当静水在50厘米以上时，夏季上下会有温差）因此，建议用静水和低水位（不超过40厘米）喂养金鱼。举个很简单的例子，当你去公园的时候，你可以看到湖里全是金鱼，不会有高质量的金鱼

3、换水

换水的最佳时间是下午4点以后。这时，金鱼已经吃饱了。换水时，去除剩余的饲料和水池中的所有污垢，然后加入适量的水进行干燥。换水方法是用纱布网将金鱼盆和池塘水面漂浮的污垢和泡沫清除干净，然后用纱布网使金鱼盆和池中的水沿同一方向轻轻旋转3~5圈，使水中的污垢集中，然后用吸管将污垢吸出，按照合适的比例贴在盆（池）边，慢慢注入干熟水

Three precautions for goldfish breeding

Goldfish (detailed introduction)

The most important thing for goldfish breeding is to pay attention to the water quality. For goldfish, if they want to grow healthily, the dissolved oxygen in water, water level and water change are very important in breeding. Only by clarifying these can goldfish avoid health problems when the seasons change

1、 Dissolved oxygen content

The dissolved oxygen content in natural water is relatively high. Natural water refers to rivers, lakes and seas, which can reach 8-12 mg/L. However, under artificial feeding conditions, the opening surface of fish ponds and fish tanks is small, the light is limited to a certain extent, and the feeding density is relatively high, so it is necessary to install an air pump to inflate to increase dissolved oxygen. If the density of fish farming is small, the aerator can be operated for about 8 hours every day. If the density is high, it should be kept on for 24 hours

In addition to oxygen, there is another condition: light, which is of great significance to the transformation of water quality and the growth of water plants. Ultraviolet rays in the sun also have bactericidal effect. Therefore, light can be used to supplement the indoor water tank that lacks light, and the ultraviolet lamp can be installed to illuminate for several hours every day to supplement the lack of sunlight

2、 Water level

The goldfish with large swimming volume will generally make the body longer, the abdomen flatter, the tail shorter and thinner, and the head characteristics degenerate and become sharp. In addition, I have seen a post from Yuyou before that the best way to feed goldfish is to use light green water with a small amount of planktonic algae. This is very important, which is beneficial to the bright color of goldfish. If the water is too deep (more than 50 cm), I'm afraid I can't see fish. (When the still water is above 50 cm, there will be a temperature difference between the upper and lower parts in summer.) Therefore, it is recommended to feed goldfish with still water and low water level (no more than 40 cm). For a very simple example, when you go to the park, you can see that the lake is full of goldfish, and there will be no high-quality goldfish

3、 Change water

The best time to change water is after 4pm. At this time, the goldfish are full. When changing water, remove the remaining feed and all the dirt in the basin and pool, and then add a proper amount of water for drying. The water change method is to use gauze net to remove the dirt and foam floating on the water surface of the goldfish basin and pond, and then use gauze net to gently rotate the water in the goldfish basin and pond in the same direction for 3~5 circles, so as to concentrate the dirt in the water, and then use a suction pipe to suck out the dirt, and stick it to the edge of the basin (pond) according to the appropriate ratio, and slowly inject the dried cooked water