Calcium > Additives > Saltwater Aquarium Supplies

Seachem Reef Calcium ™ is a concentrated (50,000 mg/L) bioavailable polygluconate complexed calcium intended to maintain calcium in the reef aquarium without altering pH (formulated at pH 8.2). Polygluconate complexation confers s...

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Liquid Supplement: See all items

Our Price: $5.99

Item Code: SC1433

Seachem Reef Calcium 500 mL

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Liquid Supplement: See all items

Our Price: $7.99

Item Code: SC1435

Seachem Reef Kalkwasser 1 kg

Seachem Reef Kalkwasser is a pure calcium hydroxide with unsurpassed purity and solubility characteristics. This calcium hydroxide meets or exceeds the purity of competing brands designated for reef use. Calcium hydroxide is used ...

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Kalkwasser: See all items

Our Price: $17.99

Item Code: SC1455

Seachem Reef Kalkwasser 2 kg

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Kalkwasser: See all items

Our Price: $30.99

Item Code: SC1457

Seachem Reef Kalkwasser 500 g

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Kalkwasser: See all items

Our Price: $10.99

Item Code: SC1453

Tropic Marin Bio-Calcium 64oz

Enables the addition of biologically ideal calcium to the reef aquarium: All calcareous animals, especially corals need calcium and carbonates to grow and flourish. However the growth rate of corals depends mostly on the zooxanth...

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Liquid Supplement: See all items

Our Price: $27.99

Item Code: TP2113

Two Little Fishies Peter Wilkens Kalkwassar 1Lb

"Kalkwasser" is the German term for limewater, a saturated solution of calcium hydroxide in water. Over twenty years ago, Peter Wilkens developed and described the proper methods for administering this solution to marine aquariums...

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Kalkwasser: See all items

Our Price: $10.99

Item Code: TL1151

Two Little Fishies Peter Wilkens Kalkwassar 4 Lb

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Kalkwasser: See all items

Our Price: $29.99

Item Code: TL1153

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