Why is the bottom filter better than the top filter?

Everyone in the industry knows that the water quality of the bottom filtered fish tank is better than that of the upper filtered fish tank, but many novice friends may not know, why? My 1.8-meter-long upper filter fish tank is not as long as this 1-meter-long bottom filter tank, and my big tank is not as good as your small tank. If there is no modification or add any external filter, it is really not comparable, why is that?

one

About the upper filter

As the saying goes, fish culture should first raise water, which is the same truth for fish culture, but the problem for beginners is also here. How to raise water is actually very simple. It is a set of effective fish tank filtration system. Many novice fish tanks are mostly finished tanks. Most common finished tanks are still filtered, but the upper filtration of finished tanks is mostly very limited space, and many novices can hardly put a few glass rings in the upper filtration. What is more, let go of a little filter cotton has occupied a lot of space for upper filtration, simple release of filter cotton can not play a very good filtration effect, and filter cotton should be cleaned frequently, otherwise it will pollute the water. But often washing filter cotton will destroy and wash off nitrifying bacteria, if you want such a filtration configuration to achieve the effect of clean fish. This is really very difficult.

two

About bottom Filterin

The bottom filtration is composed of many net boards, on which the inlet pipe of the pump can be connected. When the pump is working, the water flows into the filter tank through the diversion trough at the bottom of the net board, and the filtered water goes back to the aquarium to carry out a good water cycle, which is the best filtration for cultivating nitrifying bacteria and the strongest treatment capacity. Based on its powerful filtering system, many friends will customize the bottom filter when they buy a top-filtered fish tank.

In general, there are four grids for bottom filtration: the first grid can put filter cotton and biochemical cotton, and the second and third grid can selectively place activated carbon / ceramic ring / coral sand / biochemical ball / bacterial house and so on. The last pump can also be put into a heating rod or a germicidal lamp.

The working principle of bottom filtration gives it powerful filtering function, so in addition to the above, it also has other advantages, such as large filtration area, when the pump works, the bottom filter screen and the bottom of the aquarium in the gap, will form a strong flow of water, the dirt on the screen board will be sucked into the filter tank.

three

Principle of fish tank filtration

The working principle of the fish tank filtration system is that the water in the aquarium is pumped into the filter tank by a pump and filtered by the filter material in the filter tank, which leaves the harmful substances or impurities in the water in the filter tank. The filtered water is returned to the aquarium. This is the simplest mechanical filtration process, however, if you do not understand the filtration principle, there will be a lot of problems with aquaculture water quality, so if you want to keep the water quality in the aquarium at its best for a long time, mechanical filtration alone is not enough. The main functions of the filtration system are:

1. Physical filtration, filter material is filter cotton (coarse / fine)

The fiber in the filter cotton is used to block the insoluble impurities and wastes in the water. Physical filtration is an essential part of the filtering system. The filter cotton is often washed and changed, which can effectively reduce the content of organic matter in the cylinder, thus reduce the burden of nitrification system, and then reduce the output of mineral waste.

2. Chemical filtration, the filter material is coral sand, ceramic ring and activated carbon.

Using coral sand, ceramic rings, etc., through chemical methods, remove harmful substances soluble in water, or adjust PH value (pH); in addition, activated carbon is used in filtration, although it plays a role of physical adsorption, but it is still aimed at substances soluble in water, so here, it is considered that it is easier to understand in the part of chemical filtration.

3. Biofiltration, the filter materials are glass ring, biochemical ball, coral sand, biochemical cotton, etc.

Filter materials such as glass rings and biochemical balls are used to provide a good growth space for nitrifying bacteria, and the biological action of nitrifying bacteria is used to transform the toxic wastes produced by the metabolism of fish and aquatic plants into non-toxic substances. This is the most important link to keep the water quality of the aquarium stable, commonly known as the culture of nitrifying bacteria.

After analyzing the above filtering principle, I wonder if you can know the difference between the bottom filter and the upper filter.

First of all, the bottom filter fish tank space is sufficient, can make good use of filter media for physical and biochemical filtration, good cultivation of joke bacteria, can make the water quality to achieve the best state of fish culture. However, the filter space on the finished cylinder is limited, and there are very few filter materials that can be placed. A piece of cotton and several stone filter materials can play a role in physical filtration, but it is still difficult to achieve the best water quality. Today's article is not to belittle the upper filter fish tank, ah, the upper filter fish tank has the advantage of the upper filter fish tank, how to use it to raise the fish well? Let's continue with our next update.

I hope this article today can help you. If there are any deficiencies, I hope you can give us your advice.