The grass tank can raise rat fish. However, we must wait until the aquatic plants are full before putting the fish, if the fish are put too early, it will arch the bottom sand everywhere, resulting in the aquatic plants are not alive. In addition, it is best to keep a smaller variety, if the rat fish is too big, it also has a certain harm to the aquatic plants.
1. Lantern fish: Lantern fish is the most common ornamental fish in the grass tank at present. It has many varieties, is not big, and is very bright in color. Because they do not eat grass, they will not cause any harm to the aquatic plants in the tank. Common lantern fish species are traffic lights, lotus lights and head and tail lights, they can also be mixed with other fish.
2. Elf: Elf fish are not very big, about 4-6 cm in length. They will eat the moss algae in the tank, but basically will not eat water plants, so they can be kept in the grass tank. As a tropical fish, it is necessary to control the temperature of the water body, usually between 22-30 C, and the water quality is mostly weak acidic soft water.
3. Black-lined flying fox: Black-lined flying fox is known as the king of algae-eating fish. It is very suitable to be kept in a densely planted grass tank. It can see all kinds of algae in the tank. It can also be mixed with some small fish. It should be noted that this kind of fish has the habit of jumping tank, so if you raise it, you must add a cover to the grass tank.
