When the water temperature is lower than 7℃, it dives into deep water for wintering, but it can't completely stop eating; When the water temperature is higher than 30℃, the appetite decreases and the growth is slow. Dissolved oxygen. Osmanthus fragrans likes thin water environment, which requires the transparency of water body to be between 40 and 50 cm, and the dissolved oxygen in water to be kept above 5 mg/L. When dissolved oxygen in water drops to 2.3 mg/L, osmanthus fish will stay, float when it drops to 1.5 mg/L, and suffocate when it drops to 1 mg/L.. PH value. Osmanthus fragrans can adapt to water quality with pH value between 6.5 and 8.5. When the pH value is 7~8, it can eat and grow well. When the pH value is less than 7, the water is acidic, and diseases often occur. When the pH value is less than 4.2, the osmanthus fish will die.
Carnivorous osmanthus fish is a typical ferocious carnivorous fish, which likes to eat live bait and often devours live fry such as silver carp, bighead carp, carp and shad. People who are hungry for a long time can eat by themselves. ? Reproductive Habits Osmanthus fragrans sexually matures earlier. In natural waters, male fish 1 winter age and female fish can sexually mature at 2 winter age. Under intensive culture conditions, some female fish 1 winter age can also reach sexual maturity. In South China, the breeding period of Osmanthus fragrans is from March to August, and the peak of spawning is from May to June. The optimal incubation temperature of fertilized eggs is 20-32℃ and 25-30℃.
If you meet the above standards, it depends on how big the osmanthus fry you put in. 2.5-3.5cm sweet-scented osmanthus fish is cultivated to 10- 12cm, the culture density is 6000-8000 fish per mu, and the culture time is 25-30 days. From 2.5-3.5cm to 40-50g, the incubation time is 40-50 days. According to this hardness, it can reach 10 kg in about 8~9 months. The specific growth rate depends on your own management. I hope my answer can help you.