Based on years of experience in fish farming and feedback from fish friends, we summarized a set of observation methods. In the daily life of fish farming, we need to observe the following four aspects: the water quality, physical condition, mental state, food intake and feces of arowana.
First, observe the water quality. Intuitively, you can see the color and transparency of the water quality, and you can also smell the water. Further observation is to see if there are impurities and insects in the water. From the perspective of color and transparency, the general water quality is better to be yellowish and clear, but clear water quality does not mean absolutely good. Judging from the smell and impurities, the normal smell is fishy, and the normal water quality has few impurities and no bugs.
Of course, in addition to the above basic observations, the most accurate judgment of water quality is through the comprehensive detection of various indicators of water bodies. We also have a special article about which indicators to test. To sum up, we can make a comprehensive analysis of the water quality through the basic observation of the water quality and other detection indicators, so as to determine the water quality, water change time and water change quantity in the fish tank.
Second, the observation of fish. By observing the body of arowana, we can find some superficial diseases or injuries of the fish in advance, which is convenient for us to treat them in time and minimize the damage to the fish. Healthy arowana is full of vitality, with neat body surface and bright body color, while sick arowana is sluggish, does not eat or drink, and swims abnormally.
Fish friends need to observe whether the body surface and mucosa of arowana are damaged, and the damage on the body surface is a sign of some diseases. Then observe whether there are pathological symptoms on the body surface of arowana, such as white spots, water mold, desquamation, blisters and other common disease symptoms. If arowana's abdomen sags, it may be enteritis, which needs timely treatment. If the eyeball surface of arowana is covered with a white film, then arowana suffers from blindness and needs timely treatment.
Third, the observation of arowana's mental state. The state and eating situation of arowana can reflect the health status of the fish. How to observe the mental state of arowana? Arowana with good mental state can swim freely; Arowana with poor mental state, swimming slowly or alone. If it is found that the swimming posture of arowana is different, such as swimming backwards, leaning to one side, lowering the head, etc. It can be concluded that this arowana is not normal. It is necessary to judge whether arowana is sick and whether the water quality meets the standard in time and deal with it in time.
If it is found that the relaxation and closure of gill cover of arowana is weak or excessive, it means that it is difficult to breathe, and arowana floats to the surface to breathe, which means that it is extremely difficult to breathe. The reason for this phenomenon is the lack of oxygen in the water or the fish getting sick, so corresponding measures should be taken in time according to the situation. In addition, fish friends can also judge the mood of fish by observing their eyes. Fish in good condition have clear eyes and flexible rotation; Fish with poor conditions have dull eyes. Then it is necessary to strengthen the observation and management of fish with dull eyes.
4. Observation on food intake and feces of arowana. If it is found that arowana is not interested in bait, or stops eating, it means that arowana is abnormal, so it is necessary to check it carefully, find out the reason and deal with it in time. The defecation habit of arowana is that it can defecate half an hour after eating, and the number of defecations depends on the number of times the fish are fed. We can judge whether there is any disease in the viscera of arowana by observing the color of its feces.
The normal excreta of arowana is oval and granular, and the color is generally black, brown and brown. If it is found that the excrement is white or there is defecation, it may be a gastrointestinal problem or a parasite in the body. If it is found that the excreta of arowana appears yellow-green thin excreta and sinks to the bottom of the water, or emits foamy excreta, it means that the digestive system of arowana is abnormal and should be treated with the old three samples (warm water and salt) or drugs in time.