Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 28 - Jul 3
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Description
Seachem Onyx Sand Freshwater Substrate - 15lbOnyx Sand is a porous clay gravel for the natural planted aquarium. Being carbonate rich, Onyx Sand provides an advantage to any plants able to utilize bicarbonates. Onyx Sand is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels. Gravel modifiers such as laterite are not necessary. Onyx Sand is not chemically coated or treated and will not alter the pH of the water. Although pre washed, it may be
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.1 ★★★★★
Based on 2142 reviews
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Product Reviews
★★★★★ 5
Highly satisfied
Size: 4-Tier (10.43"x14.17"x45.67")
This item is good fit in a small space and is really cute.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
★★★★★ 3
Leans
Size: 5-Tier (10.43"x14.17"x57.48")
this serves a purpose, is inexpensive, easy to assemble, lightweight but after awhile it leans over and you can't do anything about it.
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Reviewed in the United States on December 30, 2024
★★★★★ 5
Love it
Size: 5-Tier (10.43"x14.17"x57.48")
Love it! Easy to ensemble
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Reviewed in the United States on March 6, 2026
★★★★★ 2
Slightly disappointed
Size: 4-Tier (10.43"x14.17"x45.67")
It's just wonky....
I wanted something to shelve puzzle boxes and thought this would be a great option but I'm slightly disappointed.
As I tightened the last round of screws, I hope it would straighten out but it didn't.
I triple checked the numbered pieces against the directions and everything is where it should be.
I may dismantle it to return it.
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Cosina
Color: Black, Size: 9.4*4.1*5IN
Excelente producto
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Reviewed in the United States on January 23, 2026
