Why is the water in the fish tank always cloudy? Let me teach you how to make the water clear

In today's life, in order to improve the taste of the home, people generally keep a tank of goldfish at home. During the process of keeping them, the water always becomes cloudy. For large fish tanks, cleaning is very troublesome. Today, let's join the editor to take a look at why the fish tank water is always cloudy and how to deal with it.

I. Three forms of cloudy fish tank water

1. Physical turbidity

Water turbidity caused by too many particulate impurities in the tank is called physical turbidity. Generally, in the early stage of setting up a tank, because new filter materials are used, a large amount of particulate impurities and short fibers and other foreign matter shed from them will cause water turbidity. However, this kind of turbidity is not terrible. After a few days of filtration, most of the impurities can be filtered out, so physical turbidity is not the main cause of cloudy fish tank water.

2. Chemical turbidity

Turbidity caused by the addition of chemical substances, such as water turbidity caused by the use of water purifiers and flocculants, is very rare, and it can be completely controlled by humans, so it is not the main cause of cloudy fish tank water.

3. Biological turbidity

Water turbidity caused by the massive reproduction of microorganisms is called biological turbidity. The fish tank water is muddy and unclear, grayish white, giving people a foggy feeling. These appearances are all characteristics of biological turbidity. What we often call cloudy water refers to biological turbidity.

II. How to solve cloudy fish tank water

1. There must be an effective ecological filtration system in operation

This includes mechanical filtration and biological filtration. Ordinary mechanical filtration can only remove solid dirt, while a large amount of organic matter dissolved in water, such as protein, cannot be filtered out and can only be completed by a biological filtration system.

The water in the fish tank will be polluted by fish feces, food residue, and rotten leaves of aquatic plants. In people's imagination, filtering out the visible suspended matter in the water and keeping the water clear and transparent is enough to achieve the goal, but in fact this is only the primary function of filtration, which we usually call mechanical filtration.

Modern ornamental fish tank filtration should have both mechanical filtration and biological filtration, and sometimes physical filtration is also needed. Among them, biological filtration is especially important. So-called biological filtration means using bacteria attached to filter materials to decompose or convert harmful substances dissolved in water into harmless substances. This is the most important filtration function. Physical filtration uses the unique adsorption function of certain materials (such as activated carbon) to purify water. Physical filtration is used only for short periods under special circumstances, such as to remove residual medication in the water.

2. In order to keep the water always clean and transparent

The filtration capacity of the filter must be large enough. The filtration capacity of a filter is expressed in liters per hour. To make the water clear, the filtration volume is generally required to reach 4-7 filtration cycles. Specifically, if the fish tank water is 200 liters, it should be equipped with a filter of 800-1500 liters per hour.

3. The number of fish and the amount of bait must both be moderate

If the density of fish is too high and too much bait is fed, it is equivalent to increasing the amount of pollution. Some inferior baits on the market add pigment to increase their appearance. When fed, the pigment in the bait dissolves into the water and turns the water colored. If this happens, the bait should be replaced to thoroughly solve the problem.

4. Aquatic plants can also help clarify water quality

Growing aquatic plants in a fish tank is also a good helper for purifying water. As many aquatic plants as possible should be grown so that the entire aquarium becomes a small ecological paradise, and the water will naturally become very clear.

5. Keep a pleco in the fish tank

In the tank, keep organisms that can remove attachments at the bottom of the fish tank, such as plecos and algae-eating shrimp. They can remove dirt and algae attached to the tank walls, making the tank walls clean and clear.

That is all for today's content. I hope this article can help everyone. If there are any deficiencies, I hope the seniors can offer guidance.