红色金鱼变黑是怎么回事？

红色金鱼变黑是怎么回事？

红色金鱼变黑有几个原因：

1。鱼受到惊吓时会出现黑点，一段时间后会消失

2。水质不好或水质不适合。水的pH值和硬度太高，因为水长时间没有改变。金鱼变色阶段的最适pH值为7.5-8.5。过多的碱或过多的酸会使金鱼的颜色变暗。当水质不好时，我们应该加强换水。如果水质不好，我们应该立即换水并调整水质

3。轮虫病（黑体病），其症状是患病的鱼瘦而苍白，对鳃的关注导致呼吸困难并漂浮在水面上。蛔虫是由寄生在皮肤或鳃上引起的。流行期为5月至8月，水温在25℃以上。如果是黑体病，建议用1%的盐水喂养它，并服用百万分之20的高锰酸钾溶液10至20分钟

4。天气变化时，红色金鱼可能会变黑

What's the matter with the red goldfish getting black?

There are several reasons for the red goldfish getting black:

1. The fish will appear black spots when they are frightened, and will disappear after a period of time

2. The water quality is not good or the water quality is not suitable. The pH and hardness of the water are too high because the water has not been changed for a long time. The optimum pH value of the goldfish at the discoloration stage is 7.5-8.5. Over-alkali or over-acid will darken the color of the goldfish. When the water quality is bad, we should strengthen the water change. If the water quality is not good, we should immediately change the water and adjust the water quality

3. Wheelworm disease (blackbody disease), the symptom of which is that the diseased fish is thin and pale, and the focus on the gills causes breathing difficulties and floats on the water. Wheelworm is caused by parasitism on the skin or gill. The epidemic period is from May to August when the water temperature is above 25 ℃. If it is black body disease, it is recommended to feed it with 1% salt water and take 20 parts per million potassium permanganate solution for 10 to 20 minutes

4. Red goldfish may turn black when the weather changes