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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$137.60
Average RatingRate it!(0)
Co2 Regulator & Accessory
Weipro PH2010 Ph Meter
PriceSG$116.28
SaleSG$102.52
You SaveSG$13.76 (12%)
Average Rating4.47(47)
Qty
  • Ph Probe Include
  • Easy to Adjustable
  • Fresh / Marine / Calcium Reactor Use
Up! Co2 System Kit
PriceSG$61.92
SaleSG$48.16
You SaveSG$13.76 (22%)
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Professional Deluxe Dual Co2 Regulator
PriceSG$117.65
SaleSG$102.52
You SaveSG$15.14 (13%)
Average RatingRate it!(0)
Qty
  • Dual Regulator for Output
  • Easy to Ajdust
HSL Co2 Regulator
PriceSG$92.88
SaleSG$79.12
You SaveSG$13.76 (15%)
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  • Stable Co2 Regulator
  • Easy to control
Co2 Check Valve x2
PriceSG$2.60
SaleSG$1.38
You SaveSG$1.22 (47%)
Average Rating4.67(12)
Qty
Co2 Black Tube Pipe (100cm)
PriceSG$2.06
SaleSG$1.38
You SaveSG$0.69 (33%)
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Bubble Counter with Check Valve
PriceSG$6.88
SaleSG$5.02
You SaveSG$1.86 (27%)
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Aquarium Air Tube
PriceSG$2.39
SaleSG$2.17
You SaveSG$0.22 (9%)
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Air Control Valve ~ Idea for water tubling x2
PriceSG$2.60
SaleSG$1.38
You SaveSG$1.22 (47%)
Average Rating4.33(6)
Qty
A Grade Co2 Dosing Tube
PriceSG$4.13
SaleSG$1.38
You SaveSG$2.75 (67%)
Average Rating4.8(5)
Qty
  • Dosing Cable
4 Way Tube Holder
PriceSG$6.88
SaleSG$6.19
You SaveSG$0.69 (10%)
Average Rating4.8(46)
Qty
  • Adjust Cable and Tube Easy
  • Mount on the Tank