Hakkai Stone Pahai Stone - Planted Aquarium

Shop Hakkai Stone Hardscape - Glass Aqua

$74.99 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.

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Hakkai Stone, also known as Pa-Hai Stone or Bug Eaten Stone, is a best selling aquarium stone! It’s easy to spot thanks to its signature mix of blue, grey and subtle green undertones. Combine this with its smooth, rounded shape and naturally eroded grooves, Hakkai is an absolute gem for aquascaping! Its unique features and soft color are the result of years of natural weathering, which also contributes to its rarity and limited availability when compared to other popular stones used for planted aquariums.

On the density scale, it is one of the heaviest used in the hobby. If you've checked out our general calculation for how many pounds you need for your planted tank, we recommend ordering extra, if possible, to receive multiple pieces and a wider variety of sizes. It is also inert, making it a safe choice that won’t alter parameters. If you enjoy river-style aquascapes, Iwagumi layouts or calming nature aquariums, Hakkai Stone will be the first stone we recommend. Pair it with delicate or grass-like aquatic plants to complete the look.

Shown below is a UNS 90L (20-gallon long) planted aquarium featuring Hakkai Stone.
Hakkai Stone Pahai Stone Planted Aquarium Aquascaping Rock

Overall rating: 4.7647057 / 5 from 17 reviews.

AI Generated Review Summary

Summary topics

Review topics: ["size","weight","quality","feature","pieces","stones","selection"].

Review highlights

Reviews

"The stones are just as I expected the colors are brilliant i would have liked maybe a larger piece but overall im happy with this purchase"

— Pieter (4/5)

Great Assortment of Hakkai Stone

"This is the first time I’ve ordered rocks online without any sort of WYSIWYG. Honestly, I was a bit hesitant in what I would end up getting, especially with it being on sale. The GlassAqua team did a great job with the selection and assortment of sizes. I ordered the 30lb set. Of the two large stones, one was a great traditional piece and the other was a very unique piece that looks like two separate stones (bottom left of the image) but is actually connected in between"

— Jack H. (5/5)

Perfect Hakkai accent

"I love these stones!! Perfect accent for larger Hakkai stone layouts, allowing the creation of more depth."

— Sergio M. (5/5)

Favorite hardscape stone.

"This stone is excellent. Great mix of sizes and great looking features. I would purchase again."

— Nathan I. (5/5)

Heavy bug bite smooth blue green stones worthy focal in any water feature.

"Review: Hakkai Stone is a beautiful centerpiece or focal point in any water garden or aquarium. The smooth with some areas look like ‘eaten bites’ texture, heavy density for size and mostly blueish grey green colors are just a few worthy reasons to get these stones. My only complaint is I wish the availability for larger single piece stones 30+ pounds and more could be readily available to select from."

— ROCKY M. (5/5)

Nice smooth stones for betta tank. Heavy

"Really interesting stone! I got the larger pack to make two similar setups, and recieved a good variety of sizes and shapes. Got some really cool centerpieces! Definitely a dense stone."

— Jessica S. (5/5)

Great product, quality. Fast shipping

"Great product, quality. Fast shipping"

— James P. (5/5)

Nice Selection

"I received a nice selection of small to medium sized stones that are great for my nano 16 gallon Waterbox Clear Mini tank. The 30 lb option left me with a few larger stones that I can use for my 32 gallon aquarium. I would definitely recommend ordering the larger weight if you're wanting some variety."

— Raymond J. (5/5)

Nice Pieces

"Good assortment"

— Stephen H. (5/5)

Love Hakkai Stone

"Perfect 4 my axolotls. No rough edges. Thinking about ordering another 20 pounds to complete the look. Gotta add stem plant."

— Hollie H. (5/5)

Q&A

Hello what are the smallest Hakkai Stones you have? I need a few small ones.: The stones I have received have all been 'large' like the size, roughly, of a softball. I think ordered them 2 x. I did get some that were smaller, more three and four inch diameters .

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.