How to breed nontoxic puffer fish?

When the water temperature is between 15℃ and 17℃, puffer fish can still eat, so they should be fed regularly. At the beginning of entering the pond, fish are lured to feed first, so that the fish form the habit of feeding at fixed points. Feed wet pellet bait, now feed it on the spot. The daily feeding amount is 0.5% ~ 3% of the weight of the river bream, and it is 1 ~ 2 times a day. When the water temperature is lower than 65438 02℃, the food intake of fugu orientalis is obviously reduced.

2. Water quality management

When overwintering in high density, it is necessary to maintain good water quality, and it is best to use sterilized water. When the water temperature is suitable, the river otters can still eat, so they need to be fed. Generally, the pond should be completely changed and constantly inflated. When the water temperature is low, when feeding is stopped, the water exchange rate can be reduced to 10% ~ 30% of the pool water, with intermittent aeration for 30 minutes each time and gas stoppage for 30 minutes.

3. Prevention and treatment of fish diseases

The puffer fish has a high indoor wintering density and is prone to diseases. Before the fry enter the pond, they should take a medicinal bath to remove parasites on the body surface and prevent the injured individuals from being infected with bacteria or water mold. The overwintering period is mainly prevention, and the body surface is disinfected with antibiotics every 10 ~ 15 days. You can also continuously feed bait containing antibiotics for 3 days every 15 ~ 20 days for disinfection in vivo.

4. Water temperature control

During the wintering process, we should always pay attention to the change of water temperature and weather forecast, and make full preparations before the cold wave comes to ensure that the heating equipment can operate in time. When the indoor water temperature is lower than 12℃, measures should be taken to increase the water temperature to about 14℃ and keep it constant.

Extended data:

Morphological characteristics of puffer fish;

The fish's body is cylindrical, with air bags, and it will inhale and expand when it is in danger. Generally, its body length is 25-35 cm! The maxilla, maxilla and tooth callus are combined into four large dental plates, with dorsal fin 1 and no pelvic fin. Scaleless or spiny. It is oval, with a blunt front end and a tapered tail. The kiss is short, round and blunt; Small mouth, end position, transverse crack.

There are two plate-shaped incisors in the upper and lower jaws, and the middle seam is obvious. The lips are developed, and both ends of the lower lip bend upward on the outer side of the upper lip. Small eyes, small gill holes, an arc crack, located in front of the pectoral fin, densely covered with small thorns. The dorsal fin is very backward, opposite to the gluteal fin; No ventral fins; The back end of the caudal fin is flat.

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