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Black Lava Rock Popular Aquascaping Hardscape Rock for Planted Tank

Black Lava Rock

$44.99 USD
Usually ships in 1-2 business days from our fulfillment center
All stones ship FREE!

Natural stone varies in size, shape, and color. Custom requests not guaranteed. All hardscape sales are final unless you have received the wrong item.

Aquascaping Tips
How many pounds do I need? For a nice range of shapes and sizes, we use approximately 2LB per gallon of water.
- Do not boil stones and clean thoroughly prior to use. For routine maintenance, check out our favorite rock cleaning tool.

Click here to shop all hardscape

This listing includes 15-16LB per order. Black Lava Rock is a popular aquascaping stone that is commonly used in all types of freshwater aquarium setups. Loved for its porous texture, it’s arguably one of the best rocks to pair with epiphytic aquarium plants and mosses. You’ll often see easy aquatic plants like Anubias, Bucephalandra, moss, or ferns attached to this type of aquarium hardscape. Our favorites are Mini Pellia and Fissidens Fontanus!

Its lightweight density makes it easy to stack or balance when creating structured aquascape layouts. And because it’s relatively light, you’ll get more volume per pound compared to denser stones. It works wonderfully on its own or as a base foundation underneath your favorite aquarium wood. It is also very easy to break down if you need smaller pieces for layout accents or nano aquariums. Overall, Lava Rock is versatile and offers many benefits. Aside from its use as a hardscape layout material, it’s also great for cultivating a healthy colony of beneficial bacteria for better aquarium health and balance.

Black Lava Rock Popular Aquascaping Hardscape Rock for Planted Tank

About The Brand
Reviews by real customers

Overall rating: 4.9333334 / 5 from 45 reviews.

AI Generated Review Summary

Black Lava Rock offers a variety of shapes and sizes suitable for diverse aquarium setups. Customers appreciate the quality and quantity of the rocks, which are ideal for creating aquascapes and promoting beneficial bacteria growth.

Summary topics

  • Shape Variety: 20%
  • Size Range: 29%
  • Rock Quality: 40%
  • Overall Selection: 12%

Review topics: [size, color, quality, service, shipping, shape, pieces, price, rocks, selection, scape, communication, tank].

Review highlights

  • "The stones I got showed great shape and interesting details that make my tank look awesome."Adan C.
  • "They were nice sizes and shapes."Viola M.
  • "Great pieces, good selection of sizes , as good as I'd hoped for if not better"John B.

Reviews

Best lava rock

"The glass aqua team did a great job picking a variety of shapes and sizes. My order had a huge ranges of sizes from 1-2 inches to a large centerpiece rock around 9 inches long. This order was perfect for my aqua scaping needs for my 3-5 gallon tanks and I really couldn't be happier with the value for the price. I will definitely be ordering more when I get another tank."

Andrew D. (5/5)

Good rocks

"I received a good selection of lava rock. My box had 4 large pieces plus a variety of smaller pieces"

Sean C. (5/5)

Nice rock

"Came with enough variation in pieces to build a unique scape, and enough quantity to not be limited whatsoever in designing (in fact, I had a few extra)"

Vera I. (5/5)

good teture

"varied stones with good sizes and texture"

Kaushik K. (5/5)

"15 lbs,12lbs in one big piece but that works to divy it up in pieces as I need"

Kramer (5/5)

Good mix of sizes

"Lava rocks arrived unscathed with a good mix of sizes including some pretty large pieces which have been hard for me to find elsewhere."

crystal m. (5/5)

Great shipment

"great rocks good quantity and good for moss"

Heather M. (5/5)

Very good rocks

"Come with different size and make my design come easy, love the abstract of color in the environment."

quan l. (5/5)

lava rocks

"5 big pieces and a bunch of medium and small. I could have used two more big pieces to properly scape a 20 gallon tank"

Julian C. (4/5)

Great pieces, good selection of

"Great pieces, good selection of sizes , as good as I'd hoped for if not better"

John B. (5/5)

Q&A

Do you have any 10-15’’ lava stones for sale?
Hello, Inventory will vary as this is a popular choice. For special requests, please be sure to leave a note during checkout or send our team an email at hello@glassaqua.com for further assistance. Thank you!
About how many pieces will be in a 20lb
They were largish pieces and mine had about 10 total.
Shipping, Returns and Refunds

Shipping
Orders are typically processed within 1-2 business days M-F. However, additional time may be required during peak seasons and federal holidays. For orders containing live plants, we exercise extra caution and assess factors such as travel distance and weather to ensure safe transit.

To avoid delays, please ensure all order information is accurate and complete. We cannot offer refunds and are not responsible for orders shipped to incorrect addresses due to errors in provided information. Once an order has been shipped, delivery times are determined by the carrier and are outside of our control. On average, shipments arrive within 2–5 business days, excluding weekends and holidays. For more information, please visit our FAQ page.

Returns
If you are not satisfied with your purchase, please contact us within 48 hours of delivery. Approved returns must be shipped back within 14 days of approval. Returned items must be unused, unopened, and in their original packaging. Specific return requirements, if applicable, will be listed on the product’s page. For more information, please visit our FAQ page.

Refunds
No worries, we’ll take care of everything as long as it fits the guidelines above.Most answers to general questions can be found on our FAQ page.