1. Do rats and fish have to put sand? Rats and fish don't have to put sand. They can be raised with sand or not. The breeder can decide whether to put it or not according to his personal habits. Many breeders put some sand when raising rat fish, because they have the nature of turning over sand. When the rat fish are in the wild, they will eat some fine sand with their mouths, and then they will stop spitting it out of their gills. Therefore, in order to preserve their nature, many breeders will choose to put some sand. In addition, rats and fish usually like to hide in aquatic plants. After putting sand, they can plant some aquatic plants to make them feel more secure.
If the breeder's filtration system is not particularly sound, sand can also be avoided. Because sand is easy to breed a large number of bacteria and is not easy to clean, it is not recommended to put sand in fish tanks with imperfect filtration system.
Second, what kind of sand is better for rats and fish to chooseWhen rats and fish choose sand, the first thing to pay attention to is the size and sharpness of sand. Rats and fish are small in size, and they like to arch on sand. If the sand is particularly large and sharp, it is easy to hurt the skin of rats and fish and cause them to be infected. In addition, pay attention to the nature of sand, and don't choose sand that will change the water quality, which will lead to unstable water quality in fish tanks.
Therefore, when breeders choose sand, it is best to choose some smaller and round sands, so as to avoid injuries.
