A calcium reactor is a simple, convenient solution used to maintain calcium and alkalinity in a reef aquarium. They require little maintenance after the initial setup and are almost a necessity for tanks heavily stocked with stony corals, where calcium and alkanlinty demands are high.

To remove any guesswork, weâ??ve assembled several packages that include everything youâ??ll need: a calcium reactor, a Co2 regualtor / Calcium Media and Co2 Bottle.

You can controller by the Co2 Regulator  + PH Controller + Calcium Reactor to controller the KH

Calcium Reactor
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Products
Bubble Magus Calcium Reactor
PriceSG$0.00
Average Rating4.57(7)
Aqua Excel
Aqua Excel Calcium Reactor
PriceSG$136.39
Average RatingRate it!(0)
Co2 Regulator & Accessory
4 Way Tube Holder
PriceSG$6.82
SaleSG$6.14
You SaveSG$0.68 (10%)
Average Rating4.89(35)
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  • Adjust Cable and Tube Easy
  • Mount on the Tank
Professional Deluxe Dual Co2 Regulator
PriceSG$116.61
SaleSG$101.61
You SaveSG$15.00 (13%)
Average RatingRate it!(0)
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  • Dual Regulator for Output
  • Easy to Ajdust
HSL Co2 Regulator
PriceSG$92.06
SaleSG$78.42
You SaveSG$13.64 (15%)
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  • Stable Co2 Regulator
  • Easy to control
Weipro PH2010 Ph Meter
PriceSG$115.25
SaleSG$101.61
You SaveSG$13.64 (12%)
Average Rating4.47(47)
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  • Ph Probe Include
  • Easy to Adjustable
  • Fresh / Marine / Calcium Reactor Use
Co2 Check Valve x2
PriceSG$2.58
SaleSG$1.36
You SaveSG$1.21 (47%)
Average Rating4.6(10)
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Air Control Valve ~ Idea for water tubling x2
PriceSG$2.58
SaleSG$1.36
You SaveSG$1.21 (47%)
Average Rating4.33(6)
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Co2 Black Tube Pipe (100cm)
PriceSG$2.05
SaleSG$1.36
You SaveSG$0.68 (33%)
Average RatingRate it!(0)
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A Grade Co2 Dosing Tube
PriceSG$4.09
SaleSG$1.36
You SaveSG$2.73 (67%)
Average Rating5(2)
Qty
  • Dosing Cable
Aquarium Air Tubing
PriceSG$2.37
SaleSG$2.15
You SaveSG$0.22 (9%)
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Up! Co2 System Kit
PriceSG$61.38
SaleSG$47.74
You SaveSG$13.64 (22%)
Average RatingRate it!(0)
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Bubble Counter with Check Valve
PriceSG$6.82
SaleSG$4.98
You SaveSG$1.84 (27%)
Average RatingRate it!(0)
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