Oubest Glow in The Dark Rocks Glow Pebbles Decor for Garden/Fish Tank/Aquarium/Walkway/Driveway/Plant Pots/Bonsai (100, Green)

when darkness comes around they light up, not as bright as a light but noticible in the dark at about 20 feet away

The media could not be loaded.  Very light. My fish like to move them to one side of the tankThey glow nicely at night when the lights are out

Nice bright rocks their not pebble size.

Bought these for my aquariums, and with plenty of light for several hours a day, they glow awesomely for about 30-40 after the lights are turned off. So yes, they do work and look cool but not for very long.

Great mix in with my sand gives a beautiful bright effect

I was disappointed with this product. I have a tank with a 12 hour timer. So it’s constantly getting direct light. The rocks did not glow at all. I thought at first it was the light in my tank. So I took them out and set outside for a whole day to get the natural light from the sun. Still did not glow. The only reason I did not send them back was because I do like the color of the rocks in my tank.

Wish they actually were phosphorescent.

Saw a lot of reviews that say they don’t glow… Like with most objects that glow in the dark, they need to be under a light source for a few minutes in order to glow in the dark. A blue also light works

I don't think there's any rocks out there that actually glow in the dark as much as someone wants them to these rocks unless it's pure darkness you won't really notice a big difference but yes they do glow in the dark

Están increíbles y brillan precioso pero… son muy ligeras y tantito el pez las mueve o relleno de agua y se mueve fuera de eso están increíbles

I put mine in the bird bath in clean shallow water and they do not glow one little bit, complete waste of money

great price and value

It doesn't glow as much as I thought it would. My tank is small and the bright led light can hit the stones directly and yet the glow is very light and does not last long. But the stones are safe to use for the fishes in the tank. So far no issues.