Method for make self-made fish culture filter

The manufacture method of that self-made fish culture filter is as follow:

1, materials: transparent plastic bottles (such as beverage bottles), swimming pool filter cotton or sponge filter materials, activated carbon (optional), thread or glue, scissors.

2. Step:

1), cleaning bottles: first, thoroughly clean plastic bottles to ensure that there are no residual drinks or chemicals.

2) Preparing filter material: cut the filter cotton or sponge of swimming pool into appropriate size to adapt to the caliber of the bottle. Activated carbon also needs to be cut into pieces of the same size (if used).

3) Assemble the filter: put the filter cotton or sponge filter material into the bottle to make it fill about half the capacity. If activated carbon is used, put it above the filter material. Make sure that the filter material is filled to half to two thirds of the height of the bottle.

4) Fixing filter material: Fix the filter material on the bottle mouth with thread or glue to prevent it from moving or falling off.

5) Complete the filtration: turn the bottle upside down and punch a few small holes in the bottom of the bottle to let the water pass through the filter material smoothly and enter the filter. If necessary, you can punch holes in the side of the bottle to increase the entry of oxygen.

6) Use filter: put the self-made filter into a fish tank or pond to ensure that it can be completely immersed in water. Water will pass through the holes of filters and filter materials to remove wastes and impurities and provide clean water for fish.

The function of fish filter

1. Biofiltration: The fish filter converts organic substances such as wastes and fish food residues generated by fish metabolism into harmless substances through the action of biofiltration. Biological filtration converts ammonia nitrogen into nitrite and nitrate through the action of a series of microorganisms, thus reducing the ammonia nitrogen content in water quality and reducing the impact of harmful substances on fish.

2. Chemical filtration: Some fish filters also have the function of chemical filtration, using activated carbon and other materials to adsorb and remove harmful substances such as ammonia, nitrate and nitrite in water. Chemical filtration can further improve the purity and stability of water quality.