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Filters & Reactors

Calcium & Kalkwasser Reactors

Calcium & Kalkwasser Reactors

Properly maintain alkalinity, calcium and trace elements in your aquarium with these highly rated, reliable products. Whether you choose a calcium or kalkwasser (limewater) reactor, you’ll be pleased with the results.

Displaying 1 to 40 of 40 products

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CV-OCT-KS100
Reef Octopus 4" KS100 Nilson Kalk Reactor

$269.99
CV-OCT-KS150
Reef Octopus 6" KS150 Nilson Kalk Reactor

$359.99
CV-OCT-KS250
Reef Octopus 10" KS250 Nilson Kalk Reactor

$539.99
IC-KM-120
IceCap Kalk Mixer 5"

$269.99

IC-KM-150
IceCap Kalk Mixer 6"

1 Review

$329.99
IC-KM-200
IceCap Kalk Mixer 8"

$379.99
M3-FT0002
Flow Control Pinch Valve

$13.99
M3-KL10002
Korallin C10002 Calcium Reactor with Eheim Pump

$877.49

M3-KL1502
Korallin 1502 Calcium Reactor - Rated 400G

3 Reviews

$399.49
M3-KL4002
C-4002 KORALLIN Calcium - UP TO 1600G

$627.99
MRC-CR-1
MRC CR-1 Calcium Reactor

$399.99
MRC-CR-2
MRC CR-2 Calcium Reactor

Out of Stock

$499.99

Email Me When Available

MRC-CR-4
MRC CR-4 Calcium Reactor

$599.99
MRC-CR-6
MRC CR-6 Calcium Reactor

$699.99
MRC-CR-L
MRC CR-L Add on Reactor Chamber

Out of Stock

$199.99

Email Me When Available
MRC-CR-M
MRC CR-M Add on Reactor Chamber

Out of Stock

$169.99

Email Me When Available

MRC-CR-S
MRC CR-S Add on Reactor Chamber

$149.99
MRC-CR-XL
MRC CR-XL Add on Reactor Chamber

$259.99
MRC-DNCR
MRC Dual Nano Calcium Reactor

$399.99
MRC-NANO
MRC Nano Add on Reactor Chamber CR-T

$99.99

MRC-NKRL
MRC Nilsen Kalk Reactor - Large NR-3

$829.99
MRC-NKRM
MRC Nilsen Kalk Reactor - Standard NR-2

$529.99
MRC-NKRS
MRC Nilsen Kalk Reactor - Small NR-1

$429.99
PA-KIT-KALK
Premium DIY Kalkwasser Drip Kit

$18.99

SEA-1531
Seachem Reef Reactor Md 2 L / 122 in^3

$18.99
SEA-1541
Seachem Reef Reactor Lg 2 L / 67.6 fl. oz.

$18.99
TE-TECRMX-XL
TE 6.6 lbs Calcium Reactor Media -XTRA LARGE GRAIN

Out of Stock

$14.99

Email Me When Available
TLF-KWR300
Two Little Fishies KW Reactor 300 (Kalkwasser Reactor)

$103.69

TLF-LF2
TLF LittleFeet 4.4lb

$24.99
TLF-LRX3
TLF LittleRox 6.6lb

$28.99
TLF-RBL20
TLF Little ReBorn - 44lb

Out of Stock

$129.99

Email Me When Available
TLF-RBL4
TLF Little ReBorn 8.8lb

$39.99

TLF-RM1
Two Little Fishies ReMag - 1kg

$29.99
TLF-RM4
Twolittlefishies ReMag - 4kg

$54.99
M3-KL3115
CO2 Brass Check Valve

$39.99
M3-KL3002
C-3002 Korallin Calcium Reactor, Rated 800G

$502.49

Displaying 1 to 40 of 40 products

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