There are several ways to remove the accessories from the cage:
1) caisson method.
As mentioned above, the principle of caisson method is that when the cage is about 3 meters away from the water surface, plankton will multiply in large numbers under the sunlight, and when it is blocked by other floating objects, it is easy to cause too many attachments and affect the smooth flow of water.
If the cage sinks to a depth of less than 3 meters, phytoplankton will die on their own, so as to clean the cage.
It is convenient if there is a landing ring on the cage.
2) bask in the sun and clear the box.
The principle is that phytoplankton and zooplankton in water can't live without water, and will dry up and die after being irradiated by the sun.
However, the sun exposure method is easy to accelerate the aging of net clothes.
3) biological removal, turning harm into benefit.
Some people like to eat fish attached to cages and scrape them off.
A small amount of scraped fish, such as tilapia, herring, herring, carp, crucian carp, etc. Are properly stocked in cages.
4) Manual cleaning.
This cleaning method is laborious and suitable for those with few accessories.
Cage cleaning is still the most economical and convenient method for biological removal of attachments, turning harm into benefit.
In the case of fish in cages, it is unrealistic to get rid of pollution in the sun, and caissons are more troublesome.
Manual cleaning will interfere with fish schools and affect their feeding and growth.
It is very important to purify the cage.
High water flow output.
There are many ways to clean up pollution,
Biological pest control is a brilliant idea.