water grass mud refers to a kind of bed material used in aquariums, especially aquariums that mainly raise water grass. Because it is sintered from natural soil, it is named Shuicaomu. Water grass mud contains natural humus, which can provide necessary nutrients for the growth of water grass. It is one of the important raw materials for aquatic plant cultivation and landscaping.

In the early aquariums, people used sandstone and ceramsite as the substrate to grow aquatic plants. Although this kind of substrate can provide attachments for the growth of aquatic plants, it has no nutrition and cannot provide nutrients for the growth of aquatic plants. Later, aquarium enthusiasts tried to burn the soil into solid granules with instantaneous high temperature, which not only retained the nutrients in the soil, but also kept its shape under water for a long time. This is the basic form of aquatic mud.

The original intention of using mud in the straw vat should be to imitate nature. In the raw land of water grassland, grass is born in the sediment. In order to make the grass grow well and maintain the cleanliness and good ornamental effect of the straw vat, the grass mud came into being. Generally speaking, mud is a mixture of soil and water. Of course, it is not necessarily a simple mixture. Some substances may be added in the process of making grass mud, but the main body of grass mud is soil, so its physical and chemical characteristics should also conform to or basically conform to the characteristics of soil.

The emergence of aquatic mud greatly reduces the difficulty of raising aquatic tanks, which is an important achievement in the history of aquarium.