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🌿 Elevate your plant game with nature’s volcanic power!
This 18lb bag of black lava rock features small, 1/8 to 1/4 inch porous stones that provide superior drainage and mineral supplementation for plants. Perfect for succulents, bonsai, aquariums, and garden decor, these durable, heat-resistant volcanic rocks enhance soil health while preventing root rot. Chemical-free and naturally colored, they offer versatile use from top dressing to landscaping, making them a must-have for any modern plant enthusiast.














| ASIN | B0BKRRGP6D |
| Best Sellers Rank | #11,977 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #179 in Garden Soil |
| Brand Name | Anothera |
| Customer Reviews | 4.6 4.6 out of 5 stars (432) |
| Item Weight | 18 Pounds |
| Manufacturer | Anothera |
| Style Name | Modern |
| Unit Count | 288.0 Fluid Ounces |
| Volume | 288 Fluid Ounces |
T**R
Aquarium Substrated Base Mixture - Worked Well For Needs
I am pleased with the product, as it serves as part of the bottom-level substrate mix for my smaller planted aquariums, which are capped with sand (~10 gallons). It is as pictured and of the volume noted. The black 5lb bag was ideal (a tall 10-gallon vase and a tall 10-gallon rectangle). Given the cost and size of individual pieces, I would probably not use the 5-lb bag in a larger aquarium, but would purchase a large amount. NOTE: I would definitely rinse the lava rock thoroughly before using it in an aquarium to remove dust.
Z**A
Nice size rocks
Gives my succulents a mulch and contrast helps their appearance
A**S
Looks awesome
Perfect for those plants that don’t need as much water. Color is perfect black. Low dust content. Great value for the money.
A**R
Solid pieces, expected volume, very useable.
Solid pieces with some rinseable dust. Just what I had expected. I would purchase again from this seller.
K**N
They're a matte color, carefully pick your plants when you use them.
If you're using them for something outside (outdoor plants, decorative paths, etc.) they are very matte. They absorbed much more heat than anticipated, so I had to reduce the amount I used in my garden to try and reduce water use in certain plants. They made the pots I put them in on the top HOT, and I live in a cool climate. So they're not the stones for this project. On the top of plants they do not retain water. If you mix them on with soil or put them on the bottom they do much better.
A**Y
Good quality and size
Helps to drain water from pot
M**A
Recommend
Added to my cactus mix. Great product
T**A
Geat rocks
Love these rocks. Makes my succulents look really nice when I put them on top of the dirt. Helps keep moisture in longer. My succulents are still healthy. Also keeps moisture in even put dirt in the bottom of pot then add rocks then add dirt. I do wash them before I use them. That way I know I have clean lava rocks for my plants. I even save the ones I use and rewash them.
M**N
Small size best for hang on the back aquarium filters
S**G
Rocks are one inch of size, no way they can be used for Bonsai, super disappointed!!
Trustpilot
2 months ago
3 days ago