Description
Features:Working principle: These glow in the dark rocks can absorb and store light during the day or under other lights such as sunlight, and emit light in the dark for 2-3 hours, and then gradually become dark. They can repeat the process about 15 years.Warm tips: The more light these fish tank pebbles absorb, the darker the surrounding environment will be and the brighter the light they emit. When using, do not stack these stones on top of each other.Specifications:Color: mixed colorsPackage
