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Seachem Reef Advantage Calcium 500g
Seachem Reef Advantage Calcium 500g
Seachem Reef Advantage Calcium 500g
Seachem Reef Advantage Calcium 500g
Seachem Reef Advantage Calcium 500g
Seachem Reef Advantage Calcium 500g
Seachem Reef Advantage Calcium 500g

Seachem Reef Advantage Calcium 500g

Seachem Reef Advantage Calcium 500g

$21.16

(33 reviews)

Sachem Reef Advantage Calcium is equivalent to dry Reef Complete. It 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. Reef Advantage Calcium also includes magnesium and strontium in amounts proportionate to typical utilization ratios. This allows one to maintain these two important elements while maintaining calcium. If either usage or precipitative loss results in a more rapid loss of either magnesium or strontium, then Reef Advantage Magnesium, Reef Advantage Strontium, or Reef Strontium. may be employed. 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.

Sachem Reef Advantage Calcium is equivalent to dry Reef Complete. It 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. Reef Advantage Calcium also includes magnesium and strontium in amounts proportionate to typical utilization ratios. This allows one to maintain these two important elements while maintaining calcium. If either usage or precipitative loss results in a more rapid loss of either magnesium or strontium, then Reef Advantage Magnesium, Reef Advantage Strontium, or Reef Strontium. may be employed. 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.

(33 reviews)

Sachem Reef Advantage Calcium is equivalent to dry Reef Complete. It 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. Reef Advantage Calcium also includes magnesium and strontium in amounts proportionate to typical utilization ratios. This allows one to maintain these two important elements while maintaining calcium. If either usage or precipitative loss results in a more rapid loss of either magnesium or strontium, then Reef Advantage Magnesium, Reef Advantage Strontium, or Reef Strontium. may be employed. 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.

Sachem Reef Advantage Calcium is equivalent to dry Reef Complete. It 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. Reef Advantage Calcium also includes magnesium and strontium in amounts proportionate to typical utilization ratios. This allows one to maintain these two important elements while maintaining calcium. If either usage or precipitative loss results in a more rapid loss of either magnesium or strontium, then Reef Advantage Magnesium, Reef Advantage Strontium, or Reef Strontium. may be employed. 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.

$21.16 - $41.95

in 4 offers

The lowest price for Seachem Reef Advantage Calcium 500g right now is $21.16 at peta2z.com, compared across 4 retailers.

The all-time low was $16.20 on 25 Nov 2025 β€” today's price is 31% above the lowest ever. It has been notably cheaper before β€” worth setting a price alert.

Prices last updated 10 June 2026.

Size:

1 kg
250 g

Price comparison

Price data powered by pricesAPI.io

Last updated at 10/06/2026 15:07:06

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
peta2z.com

$21.16

Seachem, Seachem Laboratories Reef Advantage Calcium Supplement, 1.1 Lbs

Delivery $27.09

Nature Aquariums

$24.95

Seachem Reef Advantage Calcium 500g

Woolworths

$41.88

Seachem Reef Advantage Calcium 500gm (SC31301)

Delivery between 15–25 June $10

Pet City

$41.95

Seachem Reef Advantage Calcium 500g

Delivery between Mon – Wed $7.74

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Price comparison

Updated about 1 hour ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
peta2z.com

$21.16

Out of stock

Seachem, Seachem Laboratories Reef Advantage Calcium Supplement, 1.1 Lbs

Delivery $27.09

Nature Aquariums

$24.95

Seachem Reef Advantage Calcium 500g

Woolworths

$41.88

Seachem Reef Advantage Calcium 500gm (SC31301)

Delivery between 15–25 June $10

Pet City

$41.95

Seachem Reef Advantage Calcium 500g

Delivery between Mon – Wed $7.74

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

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