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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
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Description
Seachem Laboratories Reef Advantage Calcium SupplementReef Advantage Calcium is a non caustic (pH 8. 3 8. 6) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater. Calcium and carbonates are essential to all coral growth. If either becomes deficient, coral growth will cease, followed by a rapid decline in coral health. To prevent this you must provide calcium (Reef Advantage Calcium) and carbonates (Reef Builder or Reef Carbonate). Reef Advantage
Reef Advantage Calcium is a non-caustic (pH 8.3-8.6) optimized blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater. Calcium and carbonates are essential to all coral growth. If either becomes deficient, coral growth will cease, followed by a rapid decline in coral health. To prevent this you must provide calcium (Reef Advantage Calcium) and carbonates (Reef Builder or Reef Carbonate). Reef Advantage Calcium also includes magnesium and strontium in amounts proportionate to typical utilization ratios (100:5:0.1, Ca:Mg:Sr). This allows one to maintain these two important elements while maintaining calcium. Unlike limewater (kalkwasser), Reef Advantage Calcium does not have a caustic pH and will not deplete magnesium. Used as directed, it will not deplete alkalinity. DO NOT OVERDOSE: Excess calcium may enhance the loss of carbonate alkalinity. Do not directly mix with any carbonate supplement. Best if calcium & carbonate additives are added on alternate days or at least 30 minutes apart. Guaranteed Analysis: Calcium (Ca) 34.7%; Magnesium (Mg) 1.73%; Strontium (Sr) 0.0346%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
4.7 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 3
Too Soft wiped
Color: A
This is too soft more wiped not firm so not think it's real maybe mixed with something else,.
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Reviewed in the United States on November 12, 2025
★★★★★ 5
PURE BATANA PASTE
Color: A
The product is just as described.
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Reviewed in the United States on January 30, 2026
★★★★★ 1
False advertisement of Real Batana oil 😡
Color: A, Color: A
This product is NOT real Batana oil , it smells like a hair relaxer it’s more of a Clay formula which Batan oil is more of a thicker formulaI. I don’t recommend the purchase of this product .This is what the product looks like after allowing it to sit in the microwave, it did not melt into an oil. This is the result of what it looks like after removing it from the microwave in picture number two.
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Reviewed in the United States on June 11, 2025
★★★★★ 5
Affordable!
Love Ordinary products! Great quality at an affordable price!
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Good starter
Good start set for wrinkles
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Reviewed in the United States on May 23, 2026
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