Placement of bottom filter materials in fish tank? What are the precautions for the use of fish tank bottom filter materials?

if you have fish in your house and use a large fish tank, you need to pay attention to the placement of filter materials at the bottom of the fish tank, so that you can use them correctly and avoid bad effects on the fish. Nowadays, many people are not particularly clear about the placement of filter materials at the bottom of fish tanks, so it is easy to cause danger to fish. Let's learn more about the placement of fish tank bottom filter materials, and what are the precautions for the use of fish tank bottom filter materials?

how to place the filter material at the bottom of the fish tank?

The arrangement order of filter materials under the fish tank should be determined according to the direction of running water. Generally, it is physical grade filtration, chemical grade filtration and biological grade filtration in turn, and the specific order is: water inlet, water pump, physical filtration, chemical filtration, biological filtration, water pump and water outlet. Among them, physical filtration can absorb large impurities in water; Chemical filtration can be used to remove odor and pigment; Biological filtration is helpful to the reproduction of nitrifying bacteria and the establishment of a perfect nitrification system in fish tanks.

filter material: filter material refers to the material that can filter and purify water. Fish tank filter materials are generally divided into physical and chemical types, including: filter cotton, magic carpet, biochemical cotton, ceramic ring, glass ring, bacteria house, activated carbon, ammonia-absorbing stone, coral sand, volcanic ring and so on.

what are the precautions in the use of fish tank bottom filter materials?

1. Fish tank filter materials should not be exposed to the sun or frequently cleaned and replaced. Generally speaking, coral sand with higher PH value can't be used as filter material for ornamental fish tanks with weak acid water quality, and volcanic rock with lower PH value can't be used as filter material for ornamental fish tanks with alkaline water quality.

2. The cleaning of filter materials depends on the situation. Generally, materials such as filter cotton can be cleaned once a month with original tank water. Be careful not to use soap and other alkaline things to clean.

3. The filter materials should be replaced in batches, not all at once. When replacing the filter material, you can replace the filter material of one grid or one area at a time, and then replace the filter material of the next grid every one or two months.

4. Physical filtration is the first line of defense of the filtration system, and it is also the most important first-level filtration. Only when it is well matched can the biochemical filtration system be used more permanently and the effect is more ideal. Some friends don't pay much attention to physical filtration, but use a lot of biochemical filtration materials, even dozens of kilograms of ceramic rings or glass rings, and some still don't get the best filtration effect. If the physical filtration effect of the first pass is thorough, do you still need so many biochemical filters? The space of the filter box itself is limited, and the long-term accumulation of harmful substances will always reach the peak of balance. The key to fish farming lies in hard work. If people are lazy, the fish will get sick. It is impossible to achieve a complete ecosystem of nature by filtering only with filter materials.