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Ships within 48 hours · Estimated delivery Jun 19 - Jun 24
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Description
Seachem Onyx Sand Freshwater Substrate - 7.7lbOnyx 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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- Please click here for more details>>> Return & Exchange Policy
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.4 ★★★★★
Based on 1598 reviews
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Product Reviews
★★★★★ 1
Won’t buy again
Size: Tripod, Size: Tripod
It started out great. But then it came apart and my puppy almost swallowed the piece that makes noise. Otherwise, it’s been a good brand of bones. Just not this particular one. The end unscrews and came apart. Not great!
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Reviewed in the United States on January 20, 2026
★★★★★ 3
Inside has liquid and dog got to it in just 2 days
Size: Tripod
Dog chewed up in few days and got the liquid inside open. They did love chewing he toy but I worried about it coming apart in pieces. So for my dog value for money isn't there if gets apart so quickly
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Reviewed in the United States on June 16, 2025
★★★★★ 4
Not for super aggressive chewers
Size: Tripod
Had high hopes, but our super-chewer somehow manages to UNSCREW the ends of the toy. Had to throw it out so she wouldn’t choke
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Reviewed in the United States on August 24, 2025
★★★★★ 5
Excelente
Size: Dumbbell
Mi perro lo ama
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Reviewed in the United States on April 10, 2026
★★★★★ 5
Great Chew Toy
Size: Tripod
Has been great for our medium sized dog who loves to chew everything. We didn't realize it makes a sound too, which helps keep his attention. So far it has held up well.
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Reviewed in the United States on September 28, 2025
