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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
Weipro
Products
Bubble Magus Calcium Reactor
PriceSG$0.00
Average Rating4.57(7)
Aqua Excel
Aqua Excel Calcium Reactor
PriceSG$135.60
Average RatingRate it!(0)
Co2 Regulator & Accessory
Weipro PH2010 Ph Meter
PriceSG$114.58
SaleSG$101.02
You SaveSG$13.56 (12%)
Average Rating4.47(47)
Qty
  • Ph Probe Include
  • Easy to Adjustable
  • Fresh / Marine / Calcium Reactor Use
Up! Co2 System Kit
PriceSG$61.02
SaleSG$47.46
You SaveSG$13.56 (22%)
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Professional Deluxe Dual Co2 Regulator
PriceSG$115.94
SaleSG$101.02
You SaveSG$14.92 (13%)
Average RatingRate it!(0)
Qty
  • Dual Regulator for Output
  • Easy to Ajdust
HSL Co2 Regulator
PriceSG$91.53
SaleSG$77.97
You SaveSG$13.56 (15%)
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  • Stable Co2 Regulator
  • Easy to control
Co2 Check Valve x2
PriceSG$2.56
SaleSG$1.36
You SaveSG$1.21 (47%)
Average Rating4.67(12)
Qty
Co2 Black Tube Pipe (100cm)
PriceSG$2.03
SaleSG$1.36
You SaveSG$0.68 (33%)
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Bubble Counter with Check Valve
PriceSG$6.78
SaleSG$4.95
You SaveSG$1.83 (27%)
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Aquarium Air Tube
PriceSG$2.36
SaleSG$2.14
You SaveSG$0.22 (9%)
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Air Control Valve ~ Idea for water tubling x2
PriceSG$2.56
SaleSG$1.36
You SaveSG$1.21 (47%)
Average Rating4.33(6)
Qty
A Grade Co2 Dosing Tube
PriceSG$4.07
SaleSG$1.36
You SaveSG$2.71 (67%)
Average Rating4.8(5)
Qty
  • Dosing Cable
4 Way Tube Holder
PriceSG$6.78
SaleSG$6.10
You SaveSG$0.68 (10%)
Average Rating4.8(46)
Qty
  • Adjust Cable and Tube Easy
  • Mount on the Tank