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
Price£0.00
Average Rating4.57(7)
Aqua Excel
Aqua Excel Calcium Reactor
Price£76.29
Average RatingRate it!(0)
Co2 Regulator & Accessory
4 Way Tube Holder
Price£3.81
Sale£3.43
You Save£0.38 (10%)
Average Rating4.81(43)
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  • Adjust Cable and Tube Easy
  • Mount on the Tank
Professional Deluxe Dual Co2 Regulator
Price£65.23
Sale£56.84
You Save£8.39 (13%)
Average RatingRate it!(0)
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  • Dual Regulator for Output
  • Easy to Ajdust
HSL Co2 Regulator
Price£51.50
Sale£43.87
You Save£7.63 (15%)
Average RatingRate it!(0)
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  • Stable Co2 Regulator
  • Easy to control
Weipro PH2010 Ph Meter
Price£64.47
Sale£56.84
You Save£7.63 (12%)
Average Rating4.47(47)
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  • Ph Probe Include
  • Easy to Adjustable
  • Fresh / Marine / Calcium Reactor Use
Co2 Check Valve x2
Price£1.44
Sale£0.76
You Save£0.68 (47%)
Average Rating4.67(12)
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Air Control Valve ~ Idea for water tubling x2
Price£1.44
Sale£0.76
You Save£0.68 (47%)
Average Rating4.33(6)
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Co2 Black Tube Pipe (100cm)
Price£1.14
Sale£0.76
You Save£0.38 (33%)
Average RatingRate it!(0)
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A Grade Co2 Dosing Tube
Price£2.29
Sale£0.76
You Save£1.53 (67%)
Average Rating4.8(5)
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  • Dosing Cable
Aquarium Air Tube
Price£1.33
Sale£1.21
You Save£0.12 (9%)
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Up! Co2 System Kit
Price£34.33
Sale£26.70
You Save£7.63 (22%)
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Bubble Counter with Check Valve
Price£3.81
Sale£2.78
You Save£1.03 (27%)
Average RatingRate it!(0)
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