Korallin Calcium Reactors
Korallin C-1502 Calcium Reactor Package includes; C-1502 Calcium Reactor, AquaMaxx Dual Gauge Professional CO2 Regulator, 5 lb. CO2 Cylinder (Empty) and CaribSea 8 lbs Reactor Media.
The already best-selling Kalkreaktor (Calcium Reactor) in Germany has become even better. It completely replaces Kalkwasser, 1 or 2-part Calcium / Buffer powder & liquid dosing. The new and improved Korallin kalkreaktor allows a simple, elegant and high efficiency production of calcium hydrogen carbonate including the necessary balanced carbonic acid. Sit back and watch your aquarium`s pH and dKH being kept at optimum levels. Together with our reliable CO2 System, this is the most maintenance-free Kalkreaktor setup in the world.
Ca2+ + 2HCO3 = Ca(HCO3)2 = CaCO3 + H2CO3 Calcium + Hydrogen Carbonate =
Calcium Hydrogen Carbonate = Calcium Carbonate + Carbonic Acid
A Kalkreaktor setup (ie: one with CO2 System and CaCO3 media) is expensive only at the beginning. You save money in the long term because a 5-pound CO2 refill ($12) lasts you 1.5 years on our Kalkreaktor (and only ours) while a 7-kg CaCO3 media ($42 and good enough for 2 refills) lasts you up to 1 year! And no more tedious daily Calcium dosing. A pH Controller is not required for our Kalkreaktor because there is no chance for the excessive CO2 to escape into your system like ALL other brands on the market. A pH Monitor is a nice equipment to have for fast pH measuring. Though pH Test Kit and pH Pen-monitor can still be used for this purpose.
The internal recirculation flow rate of the C-1502 is around 80 g/h. Since that this is a pressurized Kalkreaktor, the dissolution of the media by the carbonized water is enhanced. The effluent rate is only about 0.25 g/h at 40 drops / min. Thus explaining the efficient CO2 & media use. CO2 is being introduced into the Eheim powerhead direct - this is the most efficient Aspirating-Venturi method.
Korallin C-1502 Calcium Reactor Package - includes C-1502 Calcium Reactor, Dual Guage CO2 Regulator Deluxe, 5 lbs CO2 tank, and CaribSea 8 lbs Reactor Media
C-1502 - Rated for up to 400g. Reactor height: approx. 15.75"; Diameter: 4.5"; Ground: 6.25"; Filling amount to 3 kg. Eheim 1048 recirculation powerhead, bubble counter & brass check valve included.
- Top-loading & access w/ enhanced O-ring seal
- Auto-fill` Integrated Bubble Counter on one water circuit (ie: water never evaporates)
- Detachable Tru-Union couplings w/ O-rings for easy handling, safe shipping, upgrading and leak proof
- Integrated `industrial-grade` Brass Check Valve from German Air Pressure Systems to prevent back flow of pressurized saltwater
- Improved engineering for stronger water circulation and suction
- Secure German airline tubing connectors
- Medical-use Miniature Quick Disconnect Couplings w/ shut-off 3 Inlet & outlet facing same direction
- Special elbow for flexible airline tubing mounting
- Heavy-duty Excelon construction w/ no unsightly and fragile hangover tubing
- Top pump-mounting design
- Self-suction water intake by the silent Eheim pump eliminates the use of a dedicated powerhead, gravity-fed or tee-off methods. It also serves for water recirculation.
- Water circuit interruption in case of CO2 overdose - our exclusive CO2 Safety Feature
- Visual excessive CO2 check w/ ventilation valve for quick release
- Dual effluent outlets to suit different systems
- Aspirating-Venturi technology utilizes only 10 CO2 bubbles / min. and up - most efficient use of both CO2 gas and CaCO3 media
- Functions immediately, no `break-in period` required like other brands
- The most compact and versatile positioning Kalkreaktor in its class - 6.25" small foot print + 15.75" total height - external or in-sump
- Micro-adjustable miniature ball valve to maintain a consistent effluent drip rate
- Slightly larger (German size) airline tubing for more consistent water flow
- Strainer to protect Eheim pump from loose media particles
- C-1502 - Rated for up to 400g. Reactor height: approx. 15.75"; Diameter: 4.5"; Ground: 6.25"; Filling amount to 3 kg. Eheim 1048 recirculation powerhead, bubble counter & brass check valve included.
- C-3002 - Rated for up to 800g. Reactor height: approx. 29"; Diameter: 4.5"; Ground: 6.25"; Filling amount to 6.5 kg. Eheim 1048 recirculation powerhead, bubble counter & brass check valve included.
Product Manuals & Documentation
Korallin is a German based company who is a manufacturer of specialized aquatic components and accessories for the advanced marine aquarist.
Manufacturer`s warranty: 1 year
We ship 99% of the products we carry for free within the contiguous United States using a mix of economy methods including USPS First Class Mail, SurePost and UPS Ground. Your order will arrive in 5-7 business days.
Over 90% of our members receive their orders within 2 business using UPS Ground. Upgrade from free economy shipping to UPS Ground for only $4.99—or spend $199 and we’ll upgrade you automatically!
Expediated shipping services are available for most products if you are in a hurry. Get guaranteed delivery in 2 business days, 1 business day, or next day by 10:30 am. Costs vary by location.
Same-day shipping is available Monday-Friday for most products—place your order by 10 am PST. Pre-ordered and back-ordered items do not qualify, nor do drop-shipped, live, or frozen shipments.
Learn More About Shipping
Return any new and unused item within 60 days for a full refund. Having difficulty with a product? Contact us to speak with an aquarium expert. If you need a replacement, fill out this form.
A small segment of the 180+ brands we carry require that customers contact them directly if/when problems arise. You can view the full list of those brands and get their contact info here.
Marine Depot is an authorized reseller for every product we carry. That means when you buy aquarium supplies from us, your products are not only backed by our own 60-day return policy, they also carry full factory warranties, where applicable. Some items have a 1-year warranty, others have limited lifetime warranties. Warranty coverage varies from manufacturer to manufacturer, so please read the product description of the item(s) you are considering thoroughly for details or contact us if you have warranty questions.
Learn More About Returns
Rack up reward points to earn discounts on future purchases! You can earn reward points by creating an account, writing reviews, referring friends, subscribing to our newsletter, buying products, and more!
- Most Products
Earn 5 reward points for every $1 you spend to get 5% cash back
- Marine Depot, AquaMaxx, Accel Aquatics, and Korallin
Earn 6 reward points for every $1 you spend to get 6% cash back
- EcoTech Marine, NYOS, and Aqua Illumination
Earn 1 reward point for every $1 you spend to get 1% cash back
You can also get bonus reward points by purchasing select items during special sales and promotions.
Learn More About Rewards