CATDOLL : CATDOLL: What should I do if the sea bass fry are scattered and don’t come to eat?

1. What should I do if the sea bass fry are scattered and don’t come to eat?

The perch fry are scattered and don't come to eat. You need to check if there is food for the perch fry in the pond, such as small red worms or red nematodes. The fry don't eat much food in the early stage. If it's not the reason, you need to dissect two of them to see if there are any problems in the intestines and gills. If you can't find it, ask someone from the fish disease research institute to check it out. It's not easy to raise fish.

There may be several reasons why sea bass fry do not eat.

1. Bass fry have not formed the habit of eating feed, feed slowly. 2. Bass fry may not like the feed, change the feed. 3. Add a little bit every day, slowly increase the amount, and form the habit of eating. 4. Bass fry's stomach and digestive ability are not yet adapted to eating feed. 5. Bass mainly feeds on fish and shrimp. 6. Too low water temperature will also inhibit the fry from eating.

Sea bass mainly feed on fish and shrimp. Sea bass fry have not formed the habit of eating feed. Feed them slowly. If the fry do not like the feed, change the feed, or add a little every day, and slowly increase the amount to form a habit of eating. Sea bass fry's strength and digestion ability are not yet adapted to eating feed, so adjust slowly.

I suggest you find an expert who knows how to raise this kind of fish to take a look as soon as possible, so as not to cause unnecessary financial losses. Investment is risky, so be cautious in everything. Go find one now!!

2. Is there any freshwater perch farming in Tai'an, Shandong?

Freshwater perch are farmed in Tai'an, Shandong. Tai'an has a temperate monsoon climate with distinct four seasons, suitable cold and hot weather, synchronized light and temperature, and the same seasons for rain and heat.

1. Freshwater perch is fierce and feeds on fish and shrimp. It is one of the common economic fish and is also a species for developing marine aquaculture.

2. Choose a place with abundant water resources, fresh water and no pollution to build a pond. Each pond is 5 to 8 mu, rectangular, and preferably oriented north-south. The pond bottom should be flat, sandy and muddy, with a firm bank and a depth of 2 meters. Inlet and outlet pipes should be buried at the bottom of the pond. The farm should have a standby generator. Before stocking, the pond should be desilted and disinfected. One week before stocking, 50 kg of quicklime or 5 to 10 kg of bleaching powder can be used per mu for dry pond spraying and disinfection. Before stocking, fertilize and cultivate the basic bait for the pond water, so that the pond water is preferably oily green or tea brown.

3. Most sea bass seedlings are currently caught at sea. In spring, the sea-caught seedlings are about 2.5 to 4 cm. After the fishing and transportation operations, the fish bodies will be injured to varying degrees. In order to improve the survival rate of aquaculture, they can be temporarily reared. It is more convenient to set up a 40-mesh cage in the aquaculture pond for temporary rearing. 2,000 to 3,000 seedlings are temporarily reared per cubic meter of water, and 1×10-6 to 2×10-6 chloramphenicol is sprayed for disinfection, and furazolidone is added after feeding the surimi. In the first 10 days, feed Artemia larvae or marine and freshwater hornworms and copepods, and then feed fresh surimi. When the fish fingerlings are cultured to about 10 cm, 1.5 fish/㎡ are put into the grow-out pond.

4. Spray crystal dichlorvos throughout the pond so that the water contains 0.25×10-6 to 0.3×10-6. Apply the medicine again every 3 days. Generally, two applications are enough to cure the fish. You can also soak the fish in pure fresh water for 2 to 3 minutes and the fish lice will fall off by themselves.

3. What are the varieties of sea bass?

There are four types of fish that can be called perch:

Sea bass, scientifically known as Japanese sea bass, is distributed in nearshore waters and at the confluence of seawater and freshwater in estuaries.

Songjiang perch, also known as four-gilled perch, is the most famous of the migratory fish.

Largemouth bass, also known as California bass, is a new species introduced from the United States.

The river perch, also known as the red perch and the five-strip black perch, is native to northern Xinjiang.

4. Where is sea bass farming in Beihai?

Sea bass is farmed in the southern part of the North Sea.

1. Sea bass feed on fish and shrimp. It is one of the common economic fish and also a species for developing marine aquaculture.

2. Choose a place with abundant water resources, fresh water and no pollution to build a pond. Each pond is 5 to 8 mu, rectangular, and preferably oriented north-south. The pond bottom should be flat, sandy and muddy, with a firm bank and a depth of 2 meters. Inlet and outlet pipes should be buried at the bottom of the pond. Before stocking, the pond should be desilted and disinfected. One week before stocking, 50 kg of quicklime or 5 to 10 kg of bleaching powder can be used per mu for disinfection. Before stocking, fertilize and cultivate the basic bait for the pond water, so that the pond water is preferably oily green or tea brown.

3. Most sea bass seedlings are currently caught at sea. In spring, the sea-caught seedlings are about 2.5 to 4 cm. After the fishing and transportation operations, the fish bodies will be injured to varying degrees. In order to improve the survival rate of aquaculture, they can be temporarily reared. It is more convenient to set up a 40-mesh cage in the aquaculture pond. 2,000 to 3,000 seedlings are temporarily reared per cubic meter of water, and 1×10-6 to 2×10-6 chloramphenicol is sprayed for disinfection, and furazolidone is used after the fish paste is ingested.

4. Spray crystal dichlorvos throughout the pond so that the water contains 0.25×10-6 to 0.3×10-6. Apply the medicine again every 3 days. Generally, two applications are enough to cure the fish. You can also soak the fish in pure fresh water for 2 to 3 minutes and the fish lice will fall off by themselves.