Oubest Fish Tank Rocks Glow Blue/Glow in The Dark Pebbles for Garden/Fish Tank/Aquarium/Plant Pots/Bonsai Walkway…

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HOW IT WORKS: Glow stones absorb and store light and then when in darkness they give off light, with 2-3 hours of bright glow and then gradually dim away. They can repeat this process for 15 years.
VERSATILE DECOR: In darkness, they glow and help to show walkway, path, driveway, floor, or decorate garden, aquarium, fish tank, plant pots, bonsai.
PRODUCING SPECIAL EFFECTS: With the dreamlike glow in darkness, they could produce special effects.
NON-RADIOACTIVE & NON-TOXIC: Made of long-afterglow luminous powder, polystyrene resin, which are non-toxic and do not contain any radioactive elements.
WARM TIPS: The darker the surrounding and the more exposure to visible light, the more bright glow can be seen. When applying, do not stack stones on top of each other.