SKU: 55331868088

Red Sea Reef Foundation C Magnesium

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Description

Red Sea Reef Foundation C MagnesiumRed Sea Reef Foundation C (Magnesium) Red Sea Reef Foundation C Magnesium is used to maintain optimal magnesium levels in a coral reef aquarium, supporting the stability of water parameters essential for coral health and growth. A successful coral reef aquarium is dependent upon maintaining the appropriate water parameters that in turn provide the stable environment required by the corals. Although all the elements found in natural seawater have an

Red Sea Reef Foundation C (Magnesium)

Red Sea Reef Foundation C Magnesium is used to maintain optimal magnesium levels in a coral reef aquarium, supporting the stability of water parameters essential for coral health and growth.

A successful coral reef aquarium is dependent upon maintaining the appropriate water parameters that in turn provide the stable environment required by the corals. Although all the elements found in natural seawater have an important role in providing the optimal water parameters, a few of them have a more significant role in the overall stability. These elements are the foundation of the reef environment and they include the three major elements, Calcium (Ca), Magnesium (Mg), and Bicarbonates (HCO3). These 3 elements have a major effect on the water chemistry (pH stability, Alkalinity, seawater ionic strength) and on many of the coral's biological processes (skeleton formation, ions exchange, photosynthesis).

The foundation elements complement each other in the formation of the coral skeleton and if not available in the correct ratios one of them will quickly become the limiting factor of healthy coral growth.

Reef Foundation C consists of a blend of Magnesium salts.

Dosage Liquid

1ml will raise the Mg level of 100 liters by 1ppm.

Dosage Powder

1g will treat the 100 liters

Supplementing weekly - Soft / LPS Corals

Test the foundation elements every week and dose each supplement to replenish them back to the optimal levels.

Supplementing daily SPS / LPS corals

Ensure that all of the foundation elements are at optimal values and run the aquarium for 4 days at a stable salinity (compensate for evaporation daily by adding freshwater) without adding any supplements. At the end of the 4 days, test the foundation elements and calculate the 4-day dosage of each supplement to replenish back to the optimal levels. Add the 4-day dosage to the system. Divide this 4-day dosage by 4 and use it as the daily dosage for the next week.

After a week of adding the daily dosage, test the foundation elements and calculate the adjusting dosage of each supplement to replenish back to the optimal levels.

If the adjusting dosage is significantly different from the previous daily dosage amend(increase/decrease) the daily dosage as appropriate.
If the measured level of a specific element is above the optimal level wait for the excess of the element to be depleted before restarting the daily supplementation with the amended daily dosage.

Continue testing all of the elements every week and make adjustments to the daily dosages as required. As your corals grow or you add or remove livestock the uptake of the elements in your aquarium will gradually change. It is recommended to keep a logbook of the weekly measurements and dosages.

If you miss one or more days of supplementing add the complete amount that you have missed but do not exceed the maximum recommended daily increase for any of the elements.

Shipping Notes
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Exchange/Return Notes
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SKU: 55331868088

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Mynx
Fort Morgan, US
★★★★★ 5
Comfortable Shoes Right Out of the Box
Size: 9, Color: Black
I bought these shoes for my husband. He has a very hard time finding quality, comfortable shoes. These shoes are just as comfortable as his New Balance. He uses them as a dress shoe and wears them at least once a week. There was no break in period necessary. They were comfortable right out of the box! The only thing we didn't like was the white sole color. Once I knew he was going to keep them, I used a black sharpie marker to color the soles black. Instant amazing, comfortable dress shoes. They were well worth the cost. If you or your SO needs a comfortable pair of shoes, we highly recommend them.
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Reviewed in the United States on September 2, 2025
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Rmanuel
Los Angeles, US
★★★★★ 1
Paid for new, received used.
Size: 9.5 Wide, Color: Cognac, Size: 9.5 Wide, Color: Cognac
Arrived dirty as if someone whore it for more than a few days. Maybe I was mistaken, but I saw nothing about “previously used” on the Amazon page. Returned it. I would suggest that the company use quality control when it comes to shipping. The shoes seem find otherwise. I ordered 9.5 and it was just a bit tight. If I reorder I will go for size 10.
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Reviewed in the United States on June 11, 2026
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Fletch
Pawtucket, US
★★★★★ 5
Overall Great.
Size: 10.5 Wide, Color: Black
Great product. Great value. Great style. Overall great.
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Reviewed in the United States on March 3, 2026
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B.J. G
Alexandria, US
★★★★★ 3
Decent Shoes with Misleading Description (Not Leather)
Size: 12 Wide, Color: Black, Size: 12 Wide, Color: Black
I only look for leather when I’m purchasing dress shoes. Under the description “details” on this item it lists the shoe as leather upper and inner lining. A photo shows “genuine Napa leather lining”. If you keep reading (which I have now that I’ve received the shoes) it shows “faux leather” in the small print and that is not “leather”. I run a small leather business and this irks me because it’s clearly false advertising. The details also show the product is made in Brazil but when they arrived today, the shoe tag shows “Made in China” and “Man Made upper and lower”. I don’t hate the shoes. They look nice. What I know is they won’t hold up over time like leather, which is why the description should be accurate and not misleading.
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Reviewed in the United States on March 28, 2026
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Amazon Customer
Belleville, US
★★★★★ 5
Great Shoes
Size: 10, Color: Cognac
Love these shoes super comfortable and look great. Everyone asks me where I got them.
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Reviewed in the United States on May 20, 2026

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