Features: 1. With high stability, not easy to decompose and will not make the water muddy. 2. Contains rich organic acid and nutritional ingredient that can promote the growth of aquarium plants. 3. Can make most aquarium plants adapting to weak acid water quality grows well. 4. Simple to use, no need to clean. 5. Suitable for the root growth of most types of grass. The high-level substrate for planting aquariums provides basic nutrition for the plant root structure for long-term successful planting of freshwater aquariums Compared with sand and other sand, more suitable for the growth of most grass roots. Specifications: Condition: Brand New Material: Mud Color: Black Function: for water grass/plants growth Usage: 1. No need to wash before use, otherwise it will led to the water grass mud into powder. 2. Please lay the mud evenly in the bottom of the tank, lower in front and higher in the back of the tank, which can help to make the water plant has three-dimensional effect. 3. Please inject the water slightly in case of impacting the water grass mud. 4. When plant the water grass, please keep the mud dip in the water. 5. After finish planting the grass, please inject the water slightly in to tank. 6. If the water become muddy, please pump the water out and inject clear water slightly again.