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Calcium / Kalkwasser

Aquarium Calcium & Aquarium Kalkwasser Additives
Aquarium Kalkwasser
Aquarium Kalkwasser is the German term for a saturated solution of calcium hydroxide in water. Kalkwasser replenishes the calcium used during the growth of stony corals, coralline algae, clams, etc. Other benefits of kalkwasser include the precipitation of phosphate, maintenance of pH and alkalinity, and enhanced protein skimming. Aquarium kalkwasser can either be introduced into the tank or sump using a Kalkwasser Dosing system.

Aquarium Calcium
It is necessary to add aquarium calcium to reef aquariums in order to replenish the calcium utilized in the growth of soft and stony corals, pink coralline algae, calcareous algae, tridacna clams, and other invertebrates found in captive marine systems. Calcium can be added directly to the tank/sump. Aquarium calcium can also be introduced using a Calcium Reactor (which uses a different media than the calcium offered in this section).
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Brightwell Aquatics Calcion Liquid Calcium Supplement, 2 liters Brightwell Aquatics Calcion Liquid Calcium Supplement, 2 liters

Product Code: RBA01011
Brightwell Aquatics Calcion Liquid Calcium Supplement is a highly-concentrated ionic calcium solution. 2 liters.

Our Price: $31.00
In Stock
Brightwell Aquatics Calcion Liquid Calcium Supplement, 250 ml Brightwell Aquatics Calcion Liquid Calcium Supplement, 250 ml

Product Code: RBA01009
Brightwell Aquatics Calcion Liquid Calcium Supplement is a highly-concentrated ionic calcium solution. 250 ml.

Our Price: $6.30
In Stock
Brightwell Aquatics Calcion Liquid Calcium Supplement, 500 ml Brightwell Aquatics Calcion Liquid Calcium Supplement, 500 ml

Product Code: RBA01010
Brightwell Aquatics Calcion Liquid Calcium Supplement is a highly-concentrated ionic calcium solution. 500 ml.

Our Price: $10.90
In Stock
Brightwell Aquatics Calcion-P Dry Calcium Supplement, 200 grams Brightwell Aquatics Calcion-P Dry Calcium Supplement, 200 grams

Product Code: RBA01103
Brightwell Aquatics Calcion-P Dry Calcium Supplement is a high-purity powdered calcium. 200 grams.

Our Price: $8.80
In Stock
Brightwell Aquatics Calcion-P Dry Calcium Supplement, 400 grams Brightwell Aquatics Calcion-P Dry Calcium Supplement, 400 grams

Product Code: RBA01104
Brightwell Aquatics Calcion-P Dry Calcium Supplement is a high-purity powdered calcium. 400 grams.

Our Price: $13.70
In Stock
Brightwell Aquatics Calcion-P Dry Calcium Supplement, 800 grams Brightwell Aquatics Calcion-P Dry Calcium Supplement, 800 grams

Product Code: RBA01105
Brightwell Aquatics Calcion-P Dry Calcium Supplement is a high-purity powdered calcium. 800 grams.

Our Price: $18.00
In Stock
Brightwell Aquatics CoraLazarus High-Purity Calcium Media, 1000 grams Brightwell Aquatics CoraLazarus High-Purity Calcium Media, 1000 grams

Product Code: RBA01411
Brightwell Aquatics CoraLazarus High-Purity Calcium Media is a high-purity natural mineral that may be employed in traditional calcium reactors, or even blended in to pre-existing aquarium substrate, to gradually increase and maintain the calcium concentration and alkalinity in marine aquaria. 1000 grams.

Our Price: $8.00
In Stock
Brightwell Aquatics CoraLazarus High-Purity Calcium Media, 5 Kg Brightwell Aquatics CoraLazarus High-Purity Calcium Media, 5 Kg

Product Code: RBA01412
Brightwell Aquatics CoraLazarus High-Purity Calcium Media is a high-purity natural mineral that may be employed in traditional calcium reactors, or even blended in to pre-existing aquarium substrate, to gradually increase and maintain the calcium concentration and alkalinity in marine aquaria. 5 Kg.

Our Price: $30.90
In Stock
Brightwell Aquatics Kalk+2 Kalkwasser Supplement, 1.8 KG (4 lbs) Brightwell Aquatics Kalk+2 Kalkwasser Supplement, 1.8 KG (4 lbs)

Product Code: RBA01116
Brightwell Aquatics Kalk+2 Kalkwasser Supplement contains calcium, strontium, and magnesium in the same ionic ratios found in aragonite. This unique feature increases the usefulness of Kalk+2 to reef-building invertebrates such as corals, clams, calcareous algae, etc. 1.8 KG (4 lbs).

Our Price: $48.80
In Stock
Brightwell Aquatics Kalk+2 Kalkwasser Supplement, 100 grams Brightwell Aquatics Kalk+2 Kalkwasser Supplement, 100 grams

Product Code: RBA01113
Brightwell Aquatics Kalk+2 Kalkwasser Supplement contains calcium, strontium, and magnesium in the same ionic ratios found in aragonite. This unique feature increases the usefulness of Kalk+2 to reef-building invertebrates such as corals, clams, calcareous algae, etc. 100 grams.

Our Price: $7.00
In Stock
Brightwell Aquatics Kalk+2 Kalkwasser Supplement, 225 grams Brightwell Aquatics Kalk+2 Kalkwasser Supplement, 225 grams

Product Code: RBA01114
Brightwell Aquatics Kalk+2 Kalkwasser Supplement contains calcium, strontium, and magnesium in the same ionic ratios found in aragonite. This unique feature increases the usefulness of Kalk+2 to reef-building invertebrates such as corals, clams, calcareous algae, etc. 225 grams.

Our Price: $10.30
(Out of Stock)
Brightwell Aquatics Kalk+2 Kalkwasser Supplement, 450 grams Brightwell Aquatics Kalk+2 Kalkwasser Supplement, 450 grams

Product Code: RBA01115
Brightwell Aquatics Kalk+2 Kalkwasser Supplement contains calcium, strontium, and magnesium in the same ionic ratios found in aragonite. This unique feature increases the usefulness of Kalk+2 to reef-building invertebrates such as corals, clams, calcareous algae, etc. 450 grams.

Our Price: $14.20
In Stock