Qguai100pcs Fish Tank Rocks, Glow in The Dark Rocks Decorative Aquarium Gravel Stone Rocks Pebbles for Fish Tank Turtle Tank Vase Garden Plants Bonsai Walkway Driveway Swimming Pool - 0.9" - Blue…

I have a tree in front of my house that I put a fairy door on for the neighborhood children to enjoy during their stroller and bike rides. I place little gems around it for them to collect. I wanted to up my game so I got these non-toxic glow in the dark gems. They are a big success. Kiddos are very excited! Parents are too!!The multi colors really glow bright within the first hour of darkness. Eventually fading to mostly a light blue color after 8 hours in the dark. I am purchasing a second bag of these for my granddaughter's fairy garden.

These are not rocks just the shape of rocks. Description says not to stack them because you can’t. There’s no weight to them like real rocks have. In aquariums they tumble all over the place if near water flow or simply using a net to scoop out food.About 95% of these plastic rocks has little dots left from when these plastic items are pulled off a template - bunch of plastic pieces connected by plastic connectors and you have to twist each piece to remove it from the template grid. I had to go through each one of the stones to cut them file down those plastic pieces left behind because they are sharp enough to do damage to my snails as they glide over the substrate. Some of the stones had these raised edges where the seam is that had to be trimmed and filed down as well. Oh yeah very noticeable how the two half of the rock connect adding to the plastic look. Like an Easter egg.After all that work I decided to not use them. There’s too many inconveniences in using them vs benefit. Plus they don’t really glow all that great.

These glow very brightly and are super light weight.

I love the variety of colors.I hide them in my yard for preschool grands to find. The 4.5 year old calls them "do-dads" after the imaginary tiny people who drop them in the yard.

I was hesitant on getting these after reading the reviews saying they didn’t glow well. However they glow wonderfully & my kids love them.

After you turn your lights off it really does give a cool affect to your tank my kids love them

Wasn't expecting plastic but still cool

Great glow