1, the reason: The fish tank is too small, the feeding density is quite big, the space is insufficient, the goldfish will lose weight.
2, treatment: At this time to change the goldfish tank in time, it is best to choose a rectangular glass tank, according to the number of fish tail to determine the size of the fish tank, the premise is that the fish tank space should be sufficient.
oxygen 1. Reason: The density of breeding is high, and the lack of oxygen in the fish tank will hinder the normal growth of goldfish. If the growth is not good, the goldfish will lose weight.
2. Treatment: It's better to feed goldfish in separate tanks. Don't feed too many fish in a tank. When the oxygen in the tank is insufficient, oxygen should be given in time.
1. Reason: Considering the economic problems, many fish friends do not use filters. Some install filters and do not change water frequently, leaving a large number of harmful substances in the water body, and the goldfish body will suffer and become thin.
2. Treatment method: If the filter system is not installed, the goldfish must be pumped out every day, and the fish stool and residual bait must be pumped out. After the installation of filtration, the frequency of taking care of the feces in the fish tank can be reduced appropriately, but the water quality should be ensured to be good.
feeding 1. Reason: Goldfish is a fish that will never be satisfied with food, because they do not know how hungry and full they are, so they can be said to eat as much as they are given. A hungry and full meal is not conducive to the growth of goldfish, and it is easy to make them thin.
2. Treatment: Feed the goldfish once or twice a day. It is best to eat the food within five minutes. The goldfish should be fed with small meals.
