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☆ Quality Nanomaterials
The nano-stone is sintered at high temperature. It has good permeability, sturdiness and durability, long service life, and will not break. It has excellent performance in oxygenating water, which can ensure the health of your pet fish, shrimp and aquatic organisms. When the bubble burst into the water, the sound is super quiet.Suitable for use in fresh water or salt water.