Review on 🌌 Glow in The Dark Sky Blue Sand Gravel Rock for Home and Garden Fish Tank Aquarium Decor (3-5mm) by Vanessa Szymanski

The product itself is a very cool idea, but the stones themselves don't glow that brightly unless you expose them to extremely bright light for a long period of time, and the glow doesn't stay very bright for a long time. very long. Ambient light from our aquarium's overhead lighting room wasn't enough to properly "charge" the rocks, so we used a 5,000 lumen headlamp to shine some light on them to make them glow - which they don't. very practical to enjoy them every day. This is a great idea and if you have a UV lamp shining directly onto the stones during the day your results may be better, but if you depend on regular lighting you may be a little disappointed.