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Seachem Laboratories Reef Advantage Magnesium SupplementReef Advantage Magnesium is a concentrated (80,000 ppm) optimized blend of magnesium, chloride, and sulfate salts designed to restore depleted levels of magnesium with minimal impact to the ionic ratios found in natural sea water. Reef Advantage Magnesium contains no ammonia! This is a common contaminant in every liquid magnesium supplement on the market. Severely depleted levels of magnesium (below 800 mg L) can cause depressed pH levels and an
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.4 ★★★★★
Based on 2285 reviews
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Product Reviews
★★★★★ 5
Just perfect
Format: Paperback
Get this for nursing school, you won’t regret it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 5
Great Resource
Format: Paperback
This makes the math easy for me. They explain it in a way that just works for me. I didnt have any problems at all. Plenty of practice in each section so you can apply what you're learning as you go.
And as you go, they start to teach you various methods of calculations so you can go with whichever works for you. 5 stars.
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Reviewed in the United States on October 23, 2025
★★★★★ 4
For school
Format: Paperback, Format: Paperback
This book was required for my program. It’s exactly what I needed. The only thing is it came in a bag and not a box so the front cover got a little bent. There are also some gray spots on the side of the book. Other than that it’s in good condition and is fine for school.
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Reviewed in the United States on July 14, 2025
★★★★★ 5
Great textbook
Format: Paperback
Easy to use, great condition. Excellent visuals for basic pharmacological math.
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Reviewed in the United States on August 11, 2025
★★★★★ 5
A lot of practice assignments
Format: Paperback
Best book ever.
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Reviewed in the United States on October 11, 2025
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