? The best fish filter is the bottom filter. It only occupies the space at the bottom, but the filtering effect is very powerful, which can maintain the water quality very well. However, there are also some disadvantages, that is, it is only suitable for larger fish tanks, and small fish tanks can hardly be used. For small fish tanks, the filter and filter barrel are more convenient, which are not only easy to install, but also easy to maintain, but the filtering effect is very limited.
are the filtration methods? 1. Physical filtration: Physical filtration is necessary in almost all filtration equipment. Its principle is to filter the water in the tank through the filter material over and over again by generating water flow, so as to filter out the particles suspended in the water, the residual bait and feces at the bottom of the tank and the secretions on the body surface of the fish. Leave it in the filter tank to keep the water clear.
2. Chemical filtration: Chemical filtration is rarely encountered in domestic fish farming. This method relies on chemical agents to remove impurities in the water body. It is mostly used for fish farming in fish ponds. Common agents include flocculants, algaecides, protein decomposers, etc. No matter which one, the dosage should be well controlled to avoid side effects.
3. Biofiltration: Biofiltration mainly relies on beneficial bacteria such as nitrifying bacteria, which can decompose and transform the filtered substances, and eventually produce nitrate, which is harmless to fish and can be absorbed by aquatic plants to provide nutrients.
