5Pcs Volcanic Rock Aquatic Plant Fixing Ring, Ideal For Aquarium Landscaping, Stable Aquatic Plant Cultivation

Description: 5Pcs Natural Volcanic Rock Aquatic Plant Fixing Ring, Ideal for Aquarium Landscaping, Stable Aquatic Plant Cultivation and Aquarium Water Quality Optimization Features: 1. Made of porous volcanic rock, its rich pore structure supports the colonization of beneficial nitrifying bacteria to break down harmful ammonia and nitrite in water, effectively keeps aquarium water clean and creates a healthy living environment for fish and aquatic organisms. 2. Composed of solid volcanic rock base and soft elastic sponge insert, it firmly clamps aquatic plant stems to prevent plants from floating or being displaced by water flow, reduces repeated replanting work and maintains a neat long-lasting aquarium landscape. 3. Contains no toxic chemical additives; it will not alter the pH level or hardness of the water, even when submerged for long periods. It is completely safe for fish, shrimp, and aquatic plants, and will not disrupt the existing aquatic ecosystem. 4. The porous structure of volcanic rock delivers excellent air and water permeability around plant roots, provides sufficient oxygen and nutrients to the root system, effectively improves the survival rate of newly planted aquatic plants and promotes faster healthier root development. 5. High-density volcanic rock material is corrosion-resistant and not easy to deform or break after long-term immersion, it can be washed and reused for multiple planting cycles, reducing your long-term aquarium maintenance cost. Specifications: Category: Aquarium Landscaping Accessory, Aquatic Plant Cultivation Tool Material: Volcanic Rock, Sponge Insert Size: As the picture show(1inch = 2.54cm) Color: Natural reddish brown (volcanic rock part), white (sponge part) Application: Suitable for freshwater aquarium landscaping, aquatic plant propagation, fish tank ecological setup, shrimp tank plant cultivation Quantity: 5Pcs Note: 1. Please allow differences due to manual measurement, thanks. 2. Due to the difference between different monitors, the image may not reflect the actual color of the item. The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.