SKU: 44628962303

Seachem Reef Advantage Magnesium

Sale price$95.40 Regular price$106.00
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

Seachem Reef Advantage MagnesiumSeachem Reef Advantage Magnesium Seachem Reef Advantage Magnesium is used to restore depleted levels of magnesium in aquariums while maintaining the ionic ratios found in natural seawater. Concentrated, blended, ionically balanced magnesium source Contains NO Ammonia Vitally important in preventing ionic imbalance Severely depleted levels of magnesium (below 800 mg L) can cause depressed pH levels and an inability to maintain proper magnesium levels.

Seachem Reef Advantage Magnesium

Seachem Reef Advantage Magnesium is used to restore depleted levels of magnesium in aquariums while maintaining the ionic ratios found in natural seawater.

  • Concentrated, blended, ionically balanced magnesium source
  • Contains NO Ammonia
  • Vitally important in preventing ionic imbalance

Severely depleted levels of magnesium (below 800 mg/L) can cause depressed pH levels and an inability to maintain proper magnesium levels. Reef Advantage Magnesium is a concentrated (80,000 ppm) optimized blend of magnesium, chloride, and sulphate salts designed to restore depleted levels of magnesium with minimal impact on the ionic ratios found in natural seawater. Reef Advantage Magnesium from Seachem contains no ammonia, which is a common contaminant in other liquid magnesium supplements on the market. Seachem values the well-being of your aquarium and so has designed products that are creative solutions to the common problems of hobbyists. Seachem offers a wide range of solutions to any aquarium problem.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 44628962303

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4.2 ★★★★★
Based on 24 reviews
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Verified Purchase
Miah
Lowell, US
★★★★★ 5
Solid Floating Shelves 🛠️🏠
Color: Black, Number Of Shelves: 4, Size: 15.7in
I have installed four sets of the black floating shelves in my office. They are made of high quality materials, featuring a sophisticated black woodgrain finish with a natural texture. Supposedly, each unit can handle up to 22 pounds, though I would not recommend testing that limit with your vintage bowling ball collection if you value your flooring. They are awesome. The value is good for a set of two. Each shelf measures 22x7x1 (56x17x3 cm) inches, providing a decent amount of storage for books or decor. The installation was straightforward since the hardware for multiple wall types was included. They work well in the kitchen for spices or in the bedroom for personal belongings. One tip for a secure fit: use a level during installation and make sure the bracket is flush against the wall before sliding the shelf on, or your photos might look like they are sliding off a mountain 📐 These shelves offer a clean, modern look and stay stable once mounted correctly. They are a practical choice for adding functional display space to any room 🖼️
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Reviewed in the United States on May 4, 2026
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Verified Purchase
Tyler Kline
Waukegan, US
★★★★★ 5
Good looking shelves and easy install - skip the included drywall anchors
Color: Black, Number Of Shelves: 2, Size: 22in
I installed these shelves in a bedroom to get things off my dresser and some decor. Once mounted they look really nice. The black finish looks clean and modern and they blend in well with the room. Installation was pretty straightforward. The metal bracket mounts to the wall first and then the shelf slides over the bracket. As long as you take your time lining things up it’s a simple project. One thing I strongly recommend is not using the white plastic self-drilling drywall anchors that come with the kit. I’ve used that style before on other projects and they tend to strip out easily and leave larger holes in drywall. I used better anchors instead and the shelves mounted much more securely. The rest of the hardware worked fine and once installed the shelves feel solid and hold items well. Pros - Clean modern look - Easy installation - Feels solid once mounted - Good size for books or decor Cons - The small level included isn’t very accurate — use your own level - One of the metal brackets was slightly bent out of the box but straightened out easily Helpful tip: Use your own level and better drywall anchors if you have them. It makes installation easier and the shelves will mount much more securely. Final thoughts: For the price these are nice looking floating shelves that install easily and work well for light storage and decor.
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Reviewed in the United States on March 13, 2026
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Verified Purchase
Coffman, H
Natrona Heights, US
★★★★★ 5
Cheap, and effective!
Color: Black, Number Of Shelves: 4, Size: 15.7in
Looks good, works great, low cost. I'll be purchasing more in the future.
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Reviewed in the United States on May 12, 2026
A
Verified Purchase
Amazon Customer
Lexington, US
★★★★★ 4
Cute for coffee bar!
Color: Black, Number Of Shelves: 4, Size: 15.7in
Great for above my coffee bar. Easy to mount and align. Seems stable!
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Reviewed in the United States on April 14, 2026
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Verified Purchase
Samuel Roberts
Massapequa, US
★★★★★ 5
Great shelves, strong, secure, sturdy, decent size, unbeatable price.
Color: White, Number Of Shelves: 4, Size: 15.7in
Easy installation fits where we wanted them. Stable strong secure snug fit. Cleans easily with dust wipe. I would recommend buying these.
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Reviewed in the United States on May 19, 2026

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