Midwest Hearth 100% Natural Lava Stones for Gas Fire Pit and Fireplace (X-Large (3"- 5"))

I didn't want to spend the money for these lava rocks. You can get your typical red jagged lava rock pretty cheap, but I generally don't find this color, size, or shape locally. So I went ahead and spent the money, and happy I did. These rocks look fantastic in the fish tank, especially against a light sand substrate. Added bonus is that the pours promote the growth of beneficial bacteria. They do come out of the bag extremely dusty and look much lighter. I gave them a quick rinse in tap water and put them right in the tank.

We wanted a natural look for our modern style fireplace, and these stones fit the bill. They are the size we wanted and the color is nice too. We did a layer of black fire glass first then set these on the perimeter of the flames, as suggested by our local fireplace dealer (yeah, that’s a thing).

Tumbled to a smooth surface. Constant color. Look good in the fire pit. A bit pricey but good quality.

Not sure if they are good for fire pits—but didn’t buy them for that reason. I got them for a Opae Ula shrimp tank. Boiled them a few times and stuck them in my aquarium. No issues. They look amazing! My shrimps are happy.

Perfect for fire pit