Seven star saury
Seven-star swordfish: ClownKnife (Notopteruschitala), alias: Oriental knife, bow-backed fish, abalone hunchback fish, saury.
Produced in Thailand, Myanmar, India, large and small 90cm, the optimum temperature is 28 °C, strong adaptability, can grow in general water quality, suitable water temperature above 24 °C. It grows fast and is easy to raise. Is a nocturnal fish, mainly carnivorous, minced meat, fish pieces can be fed, like to eat live fish and shrimp, can not be mixed with small fish.
It is difficult to distinguish between male and female. The abdomen of mature female fish is enlarged and plump, while that of male fish is narrow and thin. Weak acid soft water should be used when breeding, and the water temperature is about 30 °C. Females lay eggs on rocks. It is not easy to reproduce in an aquarium.
- Prev
There are skills in choosing and purchasing koi.
First, how to choose koi. The choice of koi can follow certain criteria. Since ancient times, the evaluation standard for koi has always been a system of 50 points in posture, 30 points in color and 20 points in pattern. The recent development is a 3-2-2-1-1 system with 30 points in posture, 20 points in color, 20 points in pattern, 10 points in quality, 10 points in taste and 10 points in style. Among them, posture includes swimming posture and figure, genetic factors are dominant, while beautiful colors and patterns account for 70% of their own quality.
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Pay attention to fishing in midsummer
First, prepare to reduce the amount of bait one day before fishing, and remove obstacles such as branches (stakes) in and around the pond as well as grass residue pollution on the water surface in time, so as to pull the net smoothly. Second, timely fishing can generally choose to fish when the weather is relatively cool in the morning and when fish activities are normal, and avoid fishing in abnormal conditions such as muggy weather and fish floating heads, so as not to cause unnecessary economic losses. Third, in order to standardize the operation, we should choose the nets with appropriate mesh size, so that we can get off the net slowly and quickly, and minimize the number of net-pulling and cutting.
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