🐟 TINTOR Luminous Fish Tank Rocks - Glow Gravel for Aquarium Decoration, Garden Lawn, Plant Pots, Pathway, Driveway Review

【Material & Quantity】The glow gravel is made of polystyrene and phosphor, non-toxic and non- radioactive. Each package of glow gravel contains 100 medium-sized pebbles, which is sufficient to evenly cover a small fish tank. 【How It Works】Glow lasts approximately 3-4 hours in the dark after direct sunlight or UV light exposure for 20 minutes. The glow will be faded out gradually. They can repeat this process for 15 years. 【How to Use Them】Just spread evenly on the bottom of the fish tank or the garden pathway surface. You can make them into the shape you like (e.g. heart, star). For better visual effects, please do not stack stones on top of each other. 【Multi-scene Application】The glow stone could be used for aquarium tank, garden lawn, plant pots, driveway, swimming pool, pond, pathway and so on. 【Multiple Colors to Choose】There are 6 colors to choose, blue, green, purple, orange, primary and multi-colore.