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NSW contains 400 - 450 mg/L calcium Which is also the value we should strive for.

Calcium is a major constituent of calcareous algae, the skeletal material of hard corals and the skeletal needles of soft corals. Calcium also fulfils many biological functions.

In a healthy aquarium the growth of these and other organisms results in calcium depletion.

Without a sufficient amount of dissolved calcium in the water, many reef organisms will not grow and develop properly.

Fluctuation in calcium levels should be avoided.

Caribsea AragaMilk Liquid Aragonite Calcium 236ml
Ideal for African cichlids, livebearers, and marine aquariums of all types! The perfect alkalinity b..
Caribsea ReefCal Ionic Calcium Solution 236ml
ReefCal - is a 100,000 ppm ionic calcium solution. ReefCal will raise calcium levels by just over 5 ..
Caribsea ReefCal Ionic Calcium Solution 473ml
ReefCal™ - is a 100,000 ppm ionic calcium solution. ReefCal™ will raise calcium levels by just over ..
Deltec Hy Carb Special 2.5kg
Aqua Crown Hy Carb Special is used to enrich the calcium and magnesium concentration in seawater aqu..
Hanna Instruments Calcium Reagent, 25 Tests
Reagent kit for 25 Marine Calcium TestsThe reagent has a part A (liquid) and part B (powder)...
Hanna Instruments Check Marine Calcium Colorimeter
Calcium presence in water supplies results from passage over deposits of limestone, dolomite, gypsum..
Kent Marine Kalkwasser 225g
KALKWASSER MIX provides bio-available calcium for lush growth of purple, pink and green calcareous a..
Marinium Calcium Booster 1000g
Replenish calcium.Helps maintain alkalinity.Promote calcification.Marinium Calcium Booster is a mixt..
Marinium Calcium Booster 2500g
Replenish calcium.Helps maintain alkalinity.Promote calcification.Marinium Calcium Booster is a mixt..
Marinium Calcium Booster 4000g
(Please note this product is in a bulk bag.)Replenish calcium.Helps maintain alkalinity.Promote calc..
Marinium Ionic Balance 2 x 265ml
Increasing the level calcifying elements and alkalinity.Serves the function of a calcium reactor.Pro..
Marinium Liquid Argonate 265ml
Increasing the amount of calcifying elements.Helps maintain alkalinity. Serves the function of calci..
Marinium Liquid Calcium 265ml
Increasing the level of dissolved calcium in marine aquarium.Promote calcification of hard corals.Ma..
Red Sea Reef Foundation A Supplement (Ca/Sr) 1000ml
A successful coral reef aquarium depends on how well you maintain the water parameters which are the..
Red Sea Reef Foundation A Supplement (Ca/Sr) 1kg
A successful coral reef aquarium depends on how well you maintain the water parameters which are the..
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