What are the ways to tell if pond fish are sick?

Fish live in water, so it is not easy to spot when they get sick. If you want to know whether the fish you are farming are sick, you should first understand the difference between sick fish and healthy fish. In practice, this can generally be judged from the following situations.

1. Judging from feeding behavior: when environmental factors such as weather and water temperature have not changed much, if the fish's food intake suddenly drops, or they even stop eating, fish disease may have broken out.

2. Judging from activity: if some fish swim alone away from the school at the water surface (or in the water), move slowly, or stop and float near the bank; if some fish appear restless and agitated, swimming wildly in the water, circling, or frequently jumping out of the water, or if their tails often stick out of the water, these abnormal signs are all symptoms of sick fish.

3. Judging from the fish's body color: healthy fish have normal body color, while sick fish mostly show changes in body color, such as the body turning black, the color becoming pale, red, or white, and so on. If dead fish have already appeared in the pond, the possibility of a fish disease outbreak is extremely high.

From the situations above, you can make a preliminary judgment as to whether the farmed fish are sick. The key is to persist in patrolling and inspecting regularly in normal times, pay attention to observation, and keep track of the situation. Once you find a change in the fish's activity, you should investigate and analyze it from many aspects to find the cause, so that you can treat it with the right remedy and thus reduce losses.