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- 100% Natural Volcanic Rock: They are crushed & sifted for uniform 3?6 mm(1/8-1/4 in) size. This inert volcanic material offers slowly?released trace minerals, long?lasting & reusable. Rinse dust before aquarium use
- Great Drainage & Moisture Control: Porous lava rock drains fast, absorbs & releases moderate moisture. It reduces compaction & overwatering, lowering root?rot risks for succulents, cacti & orchids
- Versatile Top-Dressing & Soil Additive: Use as decorative top-dressing to beautify pots & suppress weeds. Mix with potting soil to boost aeration & drainage for succulents, cacti, and houseplants
- Multi?Purpose Indoor & Outdoor Use: Perfect for aquariums, terrariums, fire pits, garden soil amendment and DIY crafts. Durable rock withstands heat and varying weather for all?season projects
- Safe Aquarium Substrate: Inert lava rocks won’t alter pH, ideal for freshwater, shrimp, betta tanks & hydroponics, creating natural?feeling habitats for aquatic life
Product description
Our black lava rocks are ideal for home decoration, craft projects, scene setting, fish tanks, vase fillers, terrariums, gardens or backyard landscaping, walkways, driveways, rooftop gardens, fairy gardening, and more.
Our small 3-5mm horticultural Lava Rock Soil can be used as top dressing or at the bottom for plants, maintaining moisture, aerating soil, preventing erosion and overwatering, and improving drainage.
Lava rocks are volcanic, so they can withstand the most extreme temperatures without loss of color or change in shape. They are non-toxic, no addtional fillers, oils or dyes. They are safe to use around pets and children.
Shipping & delivery
Shipping rates are calculated and displayed at checkout. Processing times and delivery estimates are available in our Shipping Policy.
Returns & support
Questions about an item or order? Our support team is here to help. Please review our Return Policy for complete eligibility and timing details.
Why GreenCampGear
We bring together practical outdoor finds for campsites, gardens, patios and everyday life outside.
