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Today’s Popular Cement Tank Fishing Technique

It can be said that, although fish raised in cement tanks may not grow as quickly as in ponds and lakes, but they can take the initiative in water sources, and at the same time handle cases of fish diseases quickly, so they are rarely at risk. The following article will provide you guys fish farming techniques in cement tanks Modern is widely used. We invite you to read along.

What types of fish can be raised in a cement tank?

Walking around on the websites, you will see that most of the farmers apply the cement tank model to raise snakehead fish, field perch and tilapia. However, in fact, there are many types of freshwater fish that are usually raised in ponds or live in the wild that can be brought into a cement tank. These fishes are: carp, monogamous tilapia, red snapper, trout, snakehead, hybrid catfish, field perch, basa, ornamental fish, cotton eel, loach, pompano, etc.

Currently, there are many types of fish that can be raised in cement tanks
Currently, there are many types of fish that can be raised in cement tanks

Techniques for raising fish in a cement tank

With each different type of fish, farming techniques will also have different points. Therefore, the article covers only the most universal parts. When applying to farming each specific type of fish, people need to study how to raise it according to the characteristics of the selected fish breed.

Prepare the aquarium

The tank should be rectangular in shape, the optimal size is from 15 m2, the depth is about 1 – 1.5 m, with a net around it to prevent the fish from jumping out (with hyperactive fish), with a roof. cover if the weather is inclement. With this area, the fish has enough space to work, so the productivity will still be high without being affected.

At the bottom of the tank, people should cover with a layer of sand, which acts as a buffer to prevent the fish from contacting the bottom, and at the same time helps to filter the water. The tank should be tilted towards the discharge direction.

The aquarium should have a minimum size of 15m2
The aquarium should have a minimum size of 15m2

Treatment of aquariums

Before releasing fish, people pay special attention to treating the tank. Depending on the old or new tank to have a suitable cleaning method:

With the old tank, people should clean and soak the tank for a few days, then wash it before pumping water in.

With the tank is a new cement tank, people use alum mixed with water and then soak the tank for about 1 week to remove the remaining cement stains. After soaking, people drain the water and use clean water to wash the tank again, soak it for a few days, then drain the water and rinse the tank one last time before pumping new water.

Release of fingerlings

Regardless of the type of fish you choose to raise, you should also note that you should only buy seeds from reputable and good quality establishments, because this is a factor that ensures successful output.

The timing of the stocking of fingerlings in the tank is also very important. For example, to release snakehead fish, people release it in the early morning or late afternoon.

Food and how to take care of the aquarium

The main source of nutrients and food for different fish species will be different. If snakehead fish eat mainly trash fish (90%), perch eat crab, snail, shrimp, shrimp and trash fish. Therefore, people need to base on biological characteristics and growth of fish to feed the right kind of food.

Every time you feed your fish, you need to monitor the strength and clarity of the water so that you can take timely action when problems arise. Temperature, water environment, food quality or fish health will determine whether fish eat more or less.

During the rearing process, farmers can add a little more nutrition from other foods such as dry oil of all kinds, soybean rice bran or pre-mixed food; add vitamin C, active ingredients that support digestive enzymes to food when the climate changes erratically.

Each type of fish raised in a cement tank will have a different diet
Each type of fish raised in a cement tank will have a different diet

When the fish are small, it will be better if people equip them with bamboo trays. Put the food in the blister, drop it into the water not too deep, about 5-10 cm for easy observation. When the fish is larger, you can drop the food directly into the tank near the drain so that when you discharge the food residues, it can be washed away.

Water environment for fish is an extremely important issue that needs to be paid attention to. The time it takes to change the water for fish also varies between different types of fish. For example, with snakehead fish, within the first 20-25 days, the water should be changed every 2-3 days. Until the fish is 1 month old, the water must be changed daily.

In the months close to the harvest time should be changed 2 times / day. Some creative and qualified farmers in terms of land area also apply the method of building many tanks to raise many different types of fish, installing a pipeline system to bring water to the lakes, waste water from the lakes. The snakehead fish pond will be taken to the catfish pond, helping to make full use of the leftover food.

Disease prevention for fish

Most importantly, it is still to ensure the hygiene of the water for fish farming, and to clean it on the specified date.

A hygienic water environment is the way to keep fish healthy
A hygienic water environment is the way to keep fish healthy

In addition, people pay attention to deworming, giving fish antibiotics (do not abuse) if necessary.


At the time of harvest (3-6 months for snakehead fish, 3 months for catfish, etc.), farmers arrange to sell fish, recover capital, and prepare to reproduce.

We hope that the information we have provided is useful to you. Wishing you a bountiful harvest.

Emilia Chaney
Emilia Chaney
My name is Emilia Chaney. I'm a social girl from Romania with a big smile and 3 passions: Agriculture, Travel and Social Media. I try to make this blog practical, full of great advice and inspiring ideas.

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