The space in the fish tank is very small. If goldfish can't grow, it will become thinner. It is necessary to change the fish tank for goldfish in time.
It may also be because of lack of oxygen, goldfish can't grow normally because of lack of oxygen, so oxygen should be given to goldfish at this time.
It may also be because the filtration system is not perfect and the quantitative feeding is not timely, which leads to the goldfish becoming thinner.
It is necessary to improve the filtration system and feed regularly.
First, the space is less than 1. Reason: The fish tank is too small, the feeding density is relatively large, and the space is insufficient, so the goldfish will lose weight.
2. Handling: At this time, it is necessary to replace the goldfish in time. It is best to choose a rectangular glass fish tank and determine the size of the fish tank according to the number of fish tails, provided that the fish tank has sufficient space.
Second, oxygen is less than 1. Reason: The density of aquaculture is high, and the lack of oxygen in fish tanks will hinder the normal growth of goldfish.
If the growth is not good, the goldfish will lose weight.
2, treatment: goldfish is best fed in cylinders, don't feed too many fish in a fish tank, and give oxygen in time when the oxygen in the fish tank is insufficient.
Iii. Imperfect filtration system 1. Reason: Considering the economic problems, many fish friends don't use filters.
Some of them are equipped with filters and don't change water frequently, leaving a lot of harmful substances in the water, and goldfish will become thinner after being tortured.
2. Treatment: In the absence of a filtration system, the bottom of the goldfish must be drained every day, and the feces and residual bait of the fish must be extracted.
After installing the filter, you can appropriately reduce the number of times to look after the fish tank feces, but you must ensure good water quality.
4. Irregular feeding 1. Reason: Goldfish is a kind of fish that will never be satisfied with food, because it doesn't know how much to eat.
Hunger and satiety are not conducive to the growth of goldfish, and it is easy to make them thin.
2, treatment: feed goldfish once or twice a day, the food is best eaten within five minutes.
Feed goldfish in small amounts and in large meals.