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for aquaria up to 200 gallons (800 l) constant calcium values above 420 mg/l constant carbonate values above 8° dKH moderate CO 2 consumption includes EHEIM pump internal circulation 1200 times per hour bubbl...


Our Price: $279.99
Item Code: KP1101


for aquaria of 150 to 350 gallons (600–1500 l) constant calcium values above 420 mg/l constant carbonate values above 8° dKH small CO 2 consumption includes EHEIM pump internal circulation 1200 times per hour ...


Our Price: $549.99
Item Code: KP1111


KNOP Calcium Reactors KNOP Calcium Reactor Package—includes KNOP-C Calcium Reactor, Dual Gauge CO2 Regulator, and 8 lbs CaribSea ARM Reactor Media The Knop calcium reactor, also known as "The Original One", is a well established...


Our Price: $420.00
Item Code: KNCPKG1


KNOP Calcium Reactors KNOP Calcium Reactor Package—includes KNOP-C Calcium Reactor, Dual Gauge CO2 Regulator, 5 lbs CO2 tank, and 8 lbs CaribSea ARM Reactor Media The Knop calcium reactor, also known as "The Original One", is a ...


Our Price: $489.00
Item Code: KNCPKG2


for aquaria of 75 to 600 gallons (300–2500 l) enormous performance constant calcium values above 420 mg/l constant carbonate values above 8° dKH small CO 2 consumption includes EHEIM pump internal circulation...


Our Price: $529.99
Item Code: KP1131


KNOP S-IV Calcium Reactor Package—includes KNOP S-IV Calcium Reactor, Dual Gauge CO2 Regulator, and 7 kg KNOP Koralith (Coarse) Compact Construction Internal Pump, no tubes to cause a loss of flow Internal CO2 bubble cou...


Our Price: $694.00
Item Code: KNCSIVP1


KNOP S-IV Calcium Reactor Package—includes KNOP S-IV Calcium Reactor, Dual Gauge CO2 Regulator, 5 lbs CO2 tank, and 7 kg KNOP Koralith (Coarse) Compact Construction Internal Pump, no tubes to cause a loss of flow Interna...


Our Price: $764.00
Item Code: KNCSIVP2


calcium granulate for reef aquaria perfect substrate for calcium reactors increases carbonate hardness of reverse osmosis water (RO water) free of phosphates binds phosphates in aquarium water available in three...


Our Price: $26.99
Item Code: KP1083


calcium granulate for reef aquaria perfect substrate for calcium reactors increases carbonate hardness of reverse osmosis water (RO water) free of phosphates binds phosphates in aquarium water available in three...


Our Price: $26.99
Item Code: KP1081


calcium granulate for reef aquaria perfect substrate for calcium reactors increases carbonate hardness of reverse osmosis water (RO water) free of phosphates binds phosphates in aquarium water available in three...


Our Price: $26.99
Item Code: KP1082


KNOP Replacement 1/4 inch Blue Male Adaptor for C/HD Calcium Reactors


Our Price: $4.99
Item Code: KP90002


KNOP Replacement 1/8 inch Blue Male Adaptor for C/HD Calcium Reactors


Our Price: $4.99
Item Code: KP90001


KNOP Replacement Adaptor Tube/Eheim for S IV Calcium Reactor