Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 17 - Jun 22
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Description
Seachem Laboratories Matrix Biological Media 1ea/1 lMatrix High capacity biofiltration Controls ammonia, nitrite, and nitrate Highly porous enormous surface area (>~700 m2 L) Supports aerobic and anaerobic bacteria species Matrix is a high porosity biomedia that provides efficient biofiltration for the removal of nitrogenous waste. Matrix is a porous inorganic solid about 10 mm in diameter. Each liter of Matrix provides as much surface (>~700 m2) as 170 liters of plastic balls! Plastic bio materials
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- 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
4.2 ★★★★★
Based on 1814 reviews
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Product Reviews
★★★★★ 5
Good 👍
Color: White, Size: X-Large
Very nice
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 5
Shirt is an XL pants are an XXXXL
Color: White, Size: X-Large
I had to order XL because I knew the shirt size but the pants are ridiculously big. But it was worth it for the nice shirt.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
★★★★★ 5
Good First Impression
Color: Luminous watch black face
The watch looks good, keeps accurate time (so far), and is very reasonably priced. I took some links out of the bracelet for a better fit - if you have the right tools (bought mine on Amazon) and a steady hand this is not difficult - if you don't have the tools and haven't done it before, you may find it frustrating. The tool provided with the watch didn't work well for me. This watch is much lighter than my old one which is a real plus for me. Ask me again in a year and I'll give you a better idea of its performance.
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Reviewed in the United States on March 12, 2025
★★★★★ 5
Awesome watch!
Color: Luminous watch black face, Color: Luminous watch black face
My absolute favorite watch. Great fit and holds up to wear and tear. Looks great!
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Reviewed in the United States on March 28, 2026
★★★★★ 5
Nice quality for a good price
Color: Luminous watch black face
Bought this for my boyfriend for Christmas. He loves it! Nice coloring, looks like the pictures. Fits nicely and comfortably once the size was adjusted. He did have some difficulty in sizing it - the little tool provided could’ve been of better quality to make this process easier but it did the job.
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Reviewed in the United States on March 9, 2026
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