Description
Material: cultivation medium of the fish tank is made of black soil, which cannot be cleaned, and has a small amount of impurities. It can be removed with gauze after water injection. Anti-corrosion of the bottom bed: The dense and porous design of the bottom fully guarantees the aeration structure, so that the aquatic bottom will not be hardened, corrupted, and odorless. Continuously soften the water: The super-strong respiratory system inside the soil can absorb calcium and magnesium ions in t





