How long will fish starve to death without eating? What if the fish don't eat?

Smaller fish have less energy reserves and will die if they don't eat for a day or two, while older fish can last for a month or more. Generally speaking, cold-water fish are hungrier than tropical fish. If you find that fish don't eat, it may be caused by bad feed and need to be replaced in time. It may also be caused by poor water quality, so pay attention to changing water. If it is caused by disease, it should be treated with medicinal bath. First, how long will the fish starve to death? There are many kinds of fish, and different fish have different hunger tolerance. If it is a small fish, the energy stored in the body is very small, and if it cannot be eaten in time, it will soon die. Larger fish can live for a long time, and some can live for about a month. In addition, cold-water fish often have stronger hunger tolerance than tropical fish, because their metabolism is slow and their energy consumption is much smaller.

Second, what should I do if I don't eat fish? 1. Change feed: If you use a single feed for a long time, the fish is likely to be picky about food, which will lead to it not eating. At this time, it is necessary to change the feed in time and usually feed it with a variety of feeds. If you feed live bait, you must clean it and pay attention to disinfection.

2. Change the water in time: fish don't eat food, which may also be caused by improper water quality or water temperature. If the ammonia nitrogen in the water exceeds the standard and the dissolved oxygen in the water is low, it will affect its appetite. In this case, it is necessary to change the water in time, which is generally about a quarter of the total. In addition, oxygen should be injected in time to improve dissolved oxygen in water.

3, medicinal bath treatment: if the fish suffers from enteritis, or is parasitic by some intestinal parasites, it will also cause it not to eat. In this case, in addition to changing water and heating with salt, medicinal bath treatment is also needed, which usually takes about 10-20 minutes. In addition, some pesticides can be mixed into the feed.