Do you need to pay attention to any problems in cleaning and changing water in fish ponds?

To be in pond culture, a circulating filtration system must be equipped. This system is not specially used to clean up fish excrement, but to build a biochemical system for the pond.

Generally speaking, the area (or volume) of the filter bin accounts for one third of the whole pool area (or volume), and the filter bin needs to be equipped with biochemical cotton, ceramic rings and activated carbon.

It can be divided into sedimentation bin, filtration bin, biochemical bin and clear water bin in sequence. The filtration system takes water from the bottom of the pool and flows back to the pool from the clean water tank.

Raising fish is raising water. How to raise water? The filtration system provides biochemical filtration for the pool. Its principle is to cultivate a large number of digestive bacteria to treat harmful substances such as nitrite in water and convert them into harmless substances such as nitrate to achieve the purpose of nourishing water.

In view of your situation, the swimming pool has been finalized and cannot be rebuilt. Then, there are many options for installing an external filtration system. For example, you can buy a fully equipped finished filter bucket. Just according to your water quantity, the filter bucket you need should be more expensive. Never mind, there are many ways to save money. You can use a large trash can, open a hole of 15~20 cm at the bottom of the trash can, and then go to the aquarium market to buy filter materials. Filter cotton, biochemical cotton, ceramic ring and biochemical ball are arranged in sequence from top to bottom, and then a large filter pump (flow rate is 2-4 tons per hour) is purchased to pump water from the bottom of the tank, the top of the filter barrel is filled with water, the water flows back to the tank from the bottom of the filter barrel, and digestive bacteria are added (available in the market). Once the digestive bacteria system is established, there is no need to add it later, and they will reproduce themselves.

After the system is established, your water will be cleared immediately. Remember, every time you clean, only clean the filter cotton at the top of the bucket, and don't touch the filter material below. That's your magic weapon for raising fish, unless the pool is infected with malignant bacteria.

My swimming pool is similar to yours. I made a glass jar and put it in the corner. Filter 24 hours a day. The largest one in koi fish is 13, weighing more than 5 kg. Very beautiful! I hope I can help you.