Dry and wet separation is a filtering method, by raising the filter cotton, so as to make it leave the water surface, the purpose of doing so is not to let residual bait and feces soak in the water for a long time, thus slowing down the deterioration rate of water quality, but also to strengthen the filtering capacity, but also not easy to plug. However, the disadvantage of doing so is also obvious, which will increase the speed of bacterial reproduction and is harmful to the health of fish.
1. Upper filtering: Upper filtering is a common filtering equipment, which is usually placed on the top of the fish tank. The water is pumped up by a submersible pump, filtered layer by layer and then returned to the fish tank. This kind of filtering equipment is easy to install and maintain, but the filtering effect is not particularly excellent, and will lead to uneven force in the fish tank, increasing the risk of tank explosion.
2. Bottom filter: The bottom filter is a kind of filtering equipment suitable for large fish tanks. Since it is at the bottom of the tank, it is generally invisible, so it will not affect the beauty of the fish tank. Moreover, the filtering effect of the bottom filter is very strong, and the filter material can also be put a lot. Of course, for small fish tanks, such filtering equipment is more wasteful.
3. Filter cartridge: The external filter cartridge is also a good choice. There are many filter materials in the filter cartridge. It filters and returns the water after it is pumped out. The ability to filter is not as good as the bottom filter, but it is more convenient, but it needs to take up extra space, which is more difficult to do.
