Filter cotton usually has two layers of padding. To put it on the top of the filter box, the first step is to put a layer of biochemical cotton, and then you can put the dense cotton. Moreover, the collocation ratio of loose cotton is always much higher than that of dense cotton, and according to the actual space and cotton thickness of the fish tank, it is always * * *, and as many layers as you can put, as many as possible.
Usually, if you clean the filter cotton, you can't scrub it. You need to soak it in the original tank, then dump the dirty things or rinse it with a water gun. The reason why it can't be scrubbed is because it is easy to wash out. Once the structure is destroyed, it is impossible to filter small dirt.
The workflow of filtration is: the water in the tank is introduced into the filtering tank through the net, filtered by the filtering system, and then pumped back to the fish tank by the water pump. In this process, it has undergone physical and biochemical water filtration.
Material of fish tank filter cotton:
1, synthetic fiber
This kind of filter cotton has soft texture, fine screen, high density and fine filtration.
Step 2 sponge
This kind of filter cotton can filter the dust in the air, which is also called dust-proof fish tank filter cotton. Its density is not as big as the first one, but its advantage is that it is easy to clean and can be used repeatedly.
3. Biochemical cotton
This kind of filter screen is relatively large and suitable for relatively large impurity particles. Because the mesh is relatively large, the amount of water produced is relatively large, which is suitable for fish to lay eggs. Its advantages are easy cleaning and long-term use.
4. White cotton
The price is cheap, the texture is soft and the filtering effect is quite good. However, due to the delicate texture, it may be a little laborious to clean, and it may be deformed and rotted after cleaning.
5, two-color cotton
The appearance is generally green on the top and white on the bottom, which is cheap and practical and has good filtering effect, but the filter fiber may be deformed after several times of cleaning.