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What you need to know when raising fish in a cement tank with new technology

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What you need to know when raising fish in a cement tank with new technology

In recent years, fish farming in cement tanks has been adopted by many people because it brings relatively high yields. Although keeping fish in a cement tank will be somewhat complicated and the fish will also be slower to grow than when kept in a regular pond. However, this is an advanced technique to help farmers control the growth conditions of fish. In this article we will share with you what you need to know when raising fish in a cement tank according to new technology. Do not rush to miss the following interesting information.

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What kind of fish can be kept in a cement tank?

Most farmers in Vietnam use cement tanks to raise tilapia, perch and snakehead.

However, in fact, cement tanks can be used to raise many different types of fish, almost all freshwater fish that can live in the natural environment. For example: Salmon, carp, red tilapia, monogamous tilapia, hybrid catfish, cotton eel, pompano…

The model of fish farming in cement tanks according to new technology is being widely applied
The model of fish farming in cement tanks according to new technology is being widely applied

Things to know about fish farming techniques in cement tanks

With each fish breed, there will be separate farming techniques, but the common points in cement tank farming techniques are:

  1. Prepare the aquarium

Cement tanks used for adopt fish should be rectangular in shape, usually small in size from 15m2 with an average depth of about 1.5m. Around the aquarium should be arranged nets to avoid fish jumping out.

Particularly for places where fish are raised with harsh weather conditions, the tank needs to be covered with a roof. At the bottom of the aquarium, there should be an extra layer of sand to avoid the fish contacting the bottom and support the water filtration process.

Need to prepare cement fish tank and water filter system before stocking fish
Need to prepare cement fish tank and water filter system before stocking fish
  1. How to handle aquariums

After building a cement tank to prepare to release fish, what farmers must not forget is handling the fish tank. Depending on the condition of the tank, the treatment will also be different:

  • For old cement aquariums: The tank needs to be cleaned and soaked in water for a few days, then rinsed again and then pumped in.
  • For newly built cement tanks: Fish farmers need to use alum to mix in water and soak the tank for about 7 days. After that, the water containing alum will be rinsed away and used clean water to soak the tank for a few more days. Finally, drain the tank and add new water to release the fish.
  1. Notes when releasing fingerlings

When choosing to raise any type of freshwater fish, farmers need to pay attention to choosing fingerlings at reputable farms, always ensuring the quality of fish for customers.

Depending on the fish species, the stocking density in the cement pond will be different. Therefore, fish farmers must not ignore this factor to ensure that the fish always live in the best conditions.

  1. Nutrition and how to take care of the aquarium

The main type of food for each fish breed will be different. Eg:

  • The main food of perch is crab, shrimp, shrimp, trash fish…
  • Snakehead fish mainly eat trash fish.

After each fish feeding, farmers need to pay attention to observe the ability to eat and the clarity of the water to timely detect problems that are happening in the cement tank.

During the process of raising fish, people need to add a little more nutrition from dry oil, rice bran or pre-mixed food with antibiotics, vitamin C… So the fish will be healthy enough in times of climate change. often.

Each breed of fish will have a different diet
Each breed of fish will have a different diet

When raising fish in a cement tank, the water environment is an issue that needs special attention. Different fish species will have different water change times. Particularly in the months near harvest, the water in the cement tank needs to be changed twice a day.

  1. The problem of disease prevention for fish

To prevent disease for fish, farmers need to ensure clean water in the tank. Cleaning time needs to follow a certain cycle.

New technology fish farmers need to pay attention to deworming and using natural antibiotics of organic origin to improve health.

  1. Time to harvest fish

During the harvest time, fish farmers need to arrange a day to catch fish. Fish after catching need to be transported to clean the tank and reproduce.

Fish before harvest need to be checked for certain criteria
Fish before harvest need to be checked for certain criteria

Fish farming with cement tanks according to new technology brings high productivity, improved fish quality and increased revenue for applicators. However, in order for the fish farming model in cement tanks to be highly effective, farmers need to try to learn and cultivate more experience of the forerunners. Wish you success and profit with this new technology fish farming model.

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