Selection of filter media in filtration systems (below)

The previous article briefly introduced the classification of filter media, today followed by the application of filter media in water treatment systems and some common problems.

First, the placement of filter media in the filtration system, one of the most asked questions:

The answer is definitely yes. Still, in terms of aerobic and anaerobic bacteria, first of all, the organic matter in the fish pond will gradually decompose, and the decomposition will produce ammonia nitrogen, and the water body carries the decomposed impurities and ammonia nitrogen into the filtration.

The first layer to go through is physical filtration first to remove impurities visible to the naked eye, which can effectively extend the life of the filter media. Afterwards into the aerobic bacteria of the first biochemical filter media, because the main role of aerobic bacteria is to decompose ammonia nitrogen into nitrite.

Then it goes into the filter media for the anaerobic bacteria, which will convert the nitrites in the water body to nitrates. After this the water then flows through the bacterial system from the clear water bin back to the fish tank, where the nitrates will be absorbed as nutrients, and the excess will be replaced with the water as you change it, and even if it isn't, it is far less toxic to organisms than ammonia and nitrogen. This is the whole process of water quality reduction.

The order of placement of the filter media refers to the type of water inlet and outlet of your filtration system, just place them in the order as shown in the picture from water inlet to outlet.

From the point of view of bacterial parasitism, bacteria have poorer adhesion to smooth surfaces than to rough surfaces. Roughness is used as one of the selection conditions.

In terms of the number of bacteria hosted, the larger the area where the bacteria are hosted, the more they are hosted!

Combined the above two points, the criteria for selecting biochemical filter media is the surface roughness and porous, while the specific performance of the specific gravity of light, porous, absorbent, which is also the more high-grade filter media is relatively light.

Plus filter media that can regulate water quality. Let's briefly list some that may be commonly used:

5. Bacteria House

Soft water resin (PH/GH) is usually used to reduce the PH/GH of the water body, aquariums are usually more used in hard water areas, because aquatic plants like weak acidic environment and GH should be lower, so it is usually difficult to achieve the water quality of hard water areas, so, adding soft water resin can effectively reduce PH/GH, want to reduce more put more, want to reduce less put less.

Coral stone to raise PH, many people think that coral stone is used to stabilize PH, not coral stone will raise PH, generally used in fish ponds, grass tanks with caution.

Ceramic rings to raise GH are generally used a lot by those who keep koi or three lakes cichlids to raise the GH of the water body.

1、How to place the filter material? To maximize the effect? Is there any formula method? Neat or messy?

2, the filter media really do not need to clean?

3. Is it good to bag up the filter material?