It is generally acknowledged that raising fish means keeping water well, and it is not difficult to keep fish well with water.
People often say that "fish are diligent and flowers are lazy". In other words, in the process of raising ornamental fish, we can keep the water body healthy and stable by changing water frequently. Now with the development of science and technology and the enrichment of people's cognition, the purpose of changing less water is achieved through a powerful water filtration system.
It is precisely because of people's laziness that they have evolved into various filtering methods. At the same time, filter materials with various slogans appeared in the market.
For your convenience, let me introduce some of the most common filter materials on the market.
A, ceramic ring
Ceramic ring is made of kaolin, commonly known as ceramic soil, which is fired at high temperature. Ceramic rings appeared as the earliest filter material for two reasons:
The first reason is that ceramic soil is easy to obtain, ceramic ring is convenient to manufacture, low in cost and easy to popularize.
The second reason is that ceramic ring will produce many pores during high temperature firing, which are densely connected in the whole ring to form a multi-faceted aggregate, providing space for microbial reproduction.
As the originator of fish tank filter material, ceramic ring itself is stable in structure, corrosion-resistant, does not affect the water body, does not change the PH value in the water, and is still widely liked by fish friends. However, the material of ceramic ring determines the weight of ceramic ring, so it has no advantage as an upper filtration system compared with light filtration material.
Second, the glass ring
Glass ring is a derivative of ceramic ring. The main component of the glass ring is alumina. As an economical and efficient filter material, the advantage of glass ring compared with ceramic ring is that it is not easy to change color, and ceramic ring is easy to turn yellow and green after 2-3 months of use.
Glass ring has the characteristics of ceramic ring, which can purify water, absorb odor and filter water. But the glass ring needs to be cleaned, soaked and disinfected.
After long-term use of ceramic ring and glass ring, the internal gap is blocked by impurities, which leads to the decrease of surface area and performance of filter material. Therefore, after filtering for a period of time, the filter material should be replaced.
When replacing filter materials, remember not to replace too much filter materials at one time, which will easily lead to a sharp decrease in the number of nitrifying bacteria in the filter materials, leading to the collapse of the nitrification system in the water body, resulting in the whitening of the water body, the increase of small bubbles in the water body and the increase of odor in the water body, which will eventually lead to the death of fish.
In addition, glass rings and ceramic rings can also be placed in fish tanks and filter ponds to generate turbulence, thus increasing the efficiency of water circulation.
Third, volcanic rocks.
Volcanic rocks, as the name implies, are rocks produced by volcanic eruption and magma spraying into the topsoil under the action of different factors such as external pressure, humidity and temperature. Volcanic rocks are rich in color, mainly black, reddish brown and reddish brown. The internal structure of volcanic rocks is porous, with hard texture and light weight, which can be used as building materials.
Volcanic rocks have many functions in aquarium culture, mainly in the following aspects:
1. Decorative function.
Volcanic rocks are mostly rich in color and are often used by fishermen as one of the building materials for the scenery of the aquarium. Bright colors can not only decorate aquariums, but also for some specific fish, such as parrot fish, bright red volcanic rocks can stimulate the body color of parrot fish, so that parrot fish can blend with the surrounding environment and produce protective colors.
2. Adjust the pH value of water.
Volcanic rocks are widely praised not only for their excellent filtration performance, but also for their ability to adjust the pH of water. For the cultivation of ornamental fish, most ornamental fish require the pH of water to be neutral, and volcanic rocks can neutralize the pH of water, thus stabilizing the water quality. At the same time, volcanic rocks are rich in trace elements, which can improve water quality to some extent.
3. Adsorption of harmful substances.
The pore structure of volcanic rocks endows volcanic rocks with adsorption capacity. Volcanic rocks can adsorb free harmful substances and heavy metal ions in water, thus reducing the content of harmful substances in water, purifying water quality and improving water body.
4. Sterilization.
There is a small amount of radioactivity in volcanic rocks, which can produce infrared rays to kill bacteria and other microorganisms. It not only has a certain disinfection effect on the water tank, but also has a positive impact on the growth of fish.
Volcanic rocks also produce oxygen ions in water. Oxygen ions rich in water are beneficial to water disinfection, promote the metabolism of fish and promote the growth of fish to a certain extent.
Four. corallite
Coral stones are deposited many years after the death of corals. Coral stone has a porous structure, which can provide an attachment area for microbial reproduction. At the same time, the coral stone filter will change the pH of the water body, making the water body weakly alkaline. Coral stone will continuously produce alkaline substances in water filtration, so that the PH value of water can be maintained at around 7.0-8.5.
When using this filter, attention should be paid to the requirements of ornamental fish on the pH value of water. Coral filter is generally suitable for cultivating marine fish.
At the same time, it should be noted that coral filter will also change the hardness of water, and the released metal ions are easy to gather in water to produce chemical changes, resulting in an increase in the hardness of water.
When coral filter material is used in areas with high water hardness, the factors that increase water hardness should be considered. Excellent water body is easy to induce the body color of ornamental fish, which will have a certain impact on reproduction.
Five, medical stone
Maifanshi is famous in the field of health care. Medical stone, as a kind of stone in nature, is not suitable as the main material of filter media. Medical stone has good autosolubility, and when put into water, it will release a small amount of beneficial elements, thus promoting the growth of fish.
The function of medical stone is objective, but because of its compact structure and no multiple gaps, it is not suitable for a large number of filter materials. Medical stone can be summarized as a trace element regulator in water, which needs to be used together with other filter materials, but it is not suitable for volcanic rock and coral stone to appear in large quantities, which is easy to cause water quality to harden.
Six, timely materials
It is a silicate substance, which produces rich pore structure through sintering. It is light in material, good in corrosion resistance, practical and reliable, and can ensure the clarity of water without changing the water quality.
The permeability of timely filter media plays a good role in guiding water flow and has a long service life. Quartz stone needs to be soaked and washed with fine powder before use.
abstract
In essence, the core function of filter material is nothing more than the attachment and reproduction of nitrifying bacteria.
The basic characteristic of a good filter material is that it is empty. The larger the surface area, the more nitrifying bacteria can be attached. So the ability to purify water is becoming more and more powerful. of course，
A good filter material should be durable at the same time.
Therefore,
Multi-gap is also durable. As long as you have these two attributes, the filter material is really good, which is the best choice to strengthen your filter system.