How Can You Tell If a Koi Is Healthy? Learn to Observe the Health Status of Fish

The health status of fish should be carefully observed before deciding to buy them, because fish in poor health are often the cause of lateraquariumdisease transmission, and for an aquarium that is already in a stable condition, this is extremely destructive.

The Henan Ornamental Fish Breeding Base reminds you that before buying, you should consider:

1. The health status of the fish -- whether it is a lively fish with normal behavior.

2. The mutual compatibility of the new fish with other fish -- whether fighting or cannibalism may occur.

3. The space for keeping them -- whether there is enough remaining aquarium space to accommodate the new fish until they can fully mature. Only when the new fish meet the conditions in the above aspects can a formal decision to purchase be made.

Observing the condition of the fish itself directly affects the pleasure of keeping them. Only healthy fish with normal coloration can win the favor of the keeper. Healthy fish should have smooth body surfaces, and the secretion of mucus on the body surface should also be normal, and all fins should be transparent and bright; generally speaking, fish in good health should have clear eyes (eye membranes) without turbidity; the nostrils, gill tissue, fins, and anus should not be congested or show other abnormalities... Therefore, when fish lack the above conditions, the keeper must identify the factors affecting (causing) this situation and quickly improve them. Observing the state between fish and fish, or between fish and the surrounding keeping environment, should also be a key focus of observation. Is there mutual attacking or mutual rejection among the fish? Or are some of the fish growing poorly... and so on? All these questions must be answered through the keeper's own careful observation before conclusions can be drawn.

In addition, regular water changes, regular water quality testing, and so on are also conditions that a responsible aquarist must possess. Especially for some aquarists engaged in breeding or selective breeding, the concept of a "keeping process" becomes even more important!