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Home » Aquarium Supplies  » Filters  » Inline & Specialty Filters  »  Korallin BioDenitrator Nitrate Filter S-4002 w/ Eheim 1250 Pump
Korallin BioDenitrator Nitrate Filter S-4002 w/ Eheim 1250 Pump

Korallin BioDenitrator Nitrate Filter S-4002 w/ Eheim 1250 Pump

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Korallin BioDenitrator Nitrate Filter S-4002 w/ Eheim 1250 Pump Information


Product Manuals & Documentation

Feature(s):
  • Large internal volume with a small footprint
  • Optimal efficiency through high internal recirculation and fast Nitrate removal
  • Top-loading lid with detachable tubes for easy maintenance
  • No feeding liquid required!
  • Ultra-pure Sulfur (Sulphur) filling 99.9%
This revolutionary design makes denitrifaction easy and efficient. Feeding to the bacteria is not necessary; just put the unit into your system and let it run for a few weeks, denitrafication power will be activated once the unit is broken in.

The design is based around the C-1502 reactor and combine Sulfur (Sulphur) media with calcareous media to offer a high level of Nitrate removal. The recirculation method is far more efficient than simple single pass filters. As it includes reactor media, the pH is fully buffered and enriched with calcium before being returned to the tank.

With the build quality of the S-1501 reactor and recirculation, these offer very efficient nitrate removal. After a running in time of approximately 3-4 weeks (for the bacteria to colonize the chamber) this unit will, for example, reduce 100 liters with 50mg NO3 to 0 in 3-4 days.

Because this denitrator makes use of the design of Calcium Reactor C1502, once the nitrate problem has been solved, you can easily turn this denitrator into a Calcium Reactor with some additional parts (sold separately).

Comes with 1.6kg high grade pure Sulfur (Sulphur) and Calciumcarbonat.

Korallin S-4002 - Rated for up to 700 gal. Reactor height: approx. 24"; Diameter: 6.30"; Footprint diameter: 7.50"; Included filter media: 20lbs; Eheim 1250 Pump.

More Info:

The Use of Sulfur (Sulphur) Denitrators
Over the last few years, Sulfur (Sulphur) denitrators have grown in popularity in Europe from humble beginnings in public aquaria to being used in cutting edge integrated filter systems.

Existing Methods
Before we recommend a new process to customers, we make sure we have tested them ourselves on our own systems. We have long held the view that if you design a natural system with the management of nutrients in mind, nitrate and phosphate can be almost forgotten. But with all the best laid plans, you often end up with excess nutrients. These may be due to a higher load of fish or inefficiency in the system’s denitrification abilities. Either way; even the best systems can end up with a nagging 10-20ppm of residue nitrate. The options currently available to resolve excess nitrate would normally take the route of increasing water changes, adding more live rock, or increasing things like the deep sand beds or adding mangroves.

An option that many people have tried is the slow flow denitrator. These rely on anaerobic bacteria, colonising a suitable medium and the flow of water being slow enough, to become depleted of oxygen to create an environment they can thrive in. These bacteria will then multiply and consume the nitrate in the low oxygen water. If well set-up this method can be quite successful.

Enter Sulfur (Sulphur) Denitrators
Guy Martin from Ecole Nationale Supérieure de Rennes did the original work on fresh water treatments plants, although the science may pre-date this. The work was transferred to the marine environment and used by Michel Hignette, curator of the MAAO aquarium. A pilot project was launched. Since then the experiment was done on a much bigger scale, at the MAAO, as well as in the Grand Aquarium in Saint-Malo. All of these systems have been a great success and the systems have proved a real boon in large scale aquariums where the management of nitrate is often an after thought, when feeding displays stocked with large fish with voracious appetites. After these successes, there have been many Sulfur (Sulphur) denitrators added to private aquariums across the continent.
  • Simple to set-up and manage.
  • Needs no additional feeding with carbon based foods.
  • Works well without the cost of additional electronic control.
  • Will supply additional calcium to the tank when used as per instructions.
  • Units can be ran in series for management of higher nitrate levels.
  • Long lasting: up to 2-3 years.
  • Units can be easily refilled.



Manufacturer Info

Korallin
Korallin is a German based company who is a manufacturer of specialized aquatic components and accessories for the advanced marine aquarist.
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Korallin BioDenitrator Nitrate Filter S-4002 w/ Eheim 1250 Pump Reviews



Average Rating
(49 reviews)
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Works, but finicky!

by
Reviewers Rating Excellent!


Posted: 2/27/2014
5.0 5
Experience Level: Intermediate


Comments: I have had this product for over a year now. I've had my doubts at times that it is doing anything, but I can't deny that all the algae in my tank has died and never returned. The effluent output is definitely nitrate free! The trick is to keep an eye on the effluent output flow. You can definitely tell that it has anoxic bacteria colonized on the sulfur because at times you get hydrogen sulfide (rotten egg) odor coming from the effluent, which means you need to up the flow. I have cleaned the unit out completely, twice, because the effluent flow decreases as the media in the reactor becomes covered with detritus and bacteria to where I can't even get a constant flow, just a few drips. It has also saved my tank from a few fish deaths behind the live rock causing an algae burst. It's not a magic bullet, you still must do regular water changes and run phosphate remover. If you can afford it then it is a useful tool! Make sure the water intake is in a region with LOW oxygen concentration. Definitely not after an ozonator or in an area of high flow!


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GREAT PRODUCT

by
Reviewers Rating Excellent!


Posted: 2/27/2014
5.0 5
Experience Level: Intermediate


Comments: IT DOES THE TRICK MY NITRATES ARE ZERO! INTRUCTIONS WERE CONFUSING AND UNCLEAR. PICTURE IS BACKWARDS, BUT CUSTOMER SERVICE WAS GREAT AND HELPED AND EXPLAINED HOW TO HOOK IT UP PROPERLY! NO PROBLEMS AFTER HOOK UP. TOOK A HALF STAR OFF DUE TO LACK OF PROPER INSTALLATION INSTRUCTIONS


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Works with patience

by
Reviewers Rating Great


Posted: 2/25/2014 from UNITED STATES
4.0 5
Experience Level: Expert


Comments: I could write pages about this.. It's a complicated product for most. However it does work, it is effective. I have a few you tube videos on it. Part1 &2. They help out if needed.


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Money wasted

by
Reviewers Rating Unsatisfactory


Posted: 10/12/2013 from READING, PA UNITED STATES
1.0 5
Experience Level: Intermediate


Comments: Ineffective. I made a DIY denitrator roughly 1.5 years ago. The PVC sulfut denitrator-the plans are in several places online- it was very effective but very sensitiv and the pumps pumping the watr to it were "cheap" and needed a lot of adjusting consistently-this was the reason for purchasing the Korallin. THe Korallin has had no effect and it's been up and running for roughly 8 weeks. Spend your money on better pumps and use the DIY denitrator-it actually works.


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Good

by
Reviewers Rating Excellent!


Posted: 9/16/2013 from Merrillville, IN UNITED STATES
4.5 5
Experience Level: Beginner


Comments: Wow it's can lower nitrate in 6 days to zero


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Good

by
Reviewers Rating Excellent!


Posted: 9/16/2013
5.0 5
Experience Level: Intermediate


Comments: Wow it's can lower nitrate in 6 days to zero


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THE BEST Piece Of equipment

by
Reviewers Rating Excellent!


Posted: 4/21/2013 from CLIFFSIDE PARK, NJ UNITED STAT
5.0 5
Experience Level: Intermediate


Comments: I have Red Sea Max 65 pretty heavy stocked I have carbon reactor ,gfo reactor, bio pellets reactor , I changed stock skimmer for expensive Deltec Internal Protein Skimmer MC500 for $500, I change water regularly Still my nitrates around 20 ppm some time little bit higher So I decided to spend some more, and buy this Korallin reactor I can tell you it works it almost hard to believe but it all shows light yellow consistently. The only advice is to follow instructions and in about a week or so I assure you you will see the results. I would say it is the best $400 I spent on the system.


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So far, not so good

by
Reviewers Rating Below Average


Posted: 4/8/2013 from BOTHELL, WA UNITED STATES
2.0 5
Experience Level: Beginner


Comments: So for a while I was getting 0 nitrates coming out of it, but in my 500 gallon setup the 4002 is just having no effect. Even though it is rated for a 700 gallon setup. I think I will had a second 4002 and see if that makes a dent.


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Wow!

by
Reviewers Rating Excellent!


Posted: 1/19/2013 from Los Angeles, CA UNITED STATES
5.0 5
Experience Level: Expert


Comments: I've been using this denitrator for about 4 years now on 200 to 30 gallon reef aquariums. All I can say is wow! My nitrates have remained at zero. I still perform regular maintenace and water changes. Well worth the money! It does take a little longer to start working on lager tanks. Expect to clean pump every 6 to 12 months, and break down unit every 1 1/2 to 2 year and clean. Clean or replace tubing every 6 months, keep tubing out of strong light or they will clog with algea. I now sleep better at night.


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0 Nitrates!

by
Reviewers Rating Excellent!


Posted: 12/12/2012 from CHESHIRE, MA UNITED STATES
5.0 5
Experience Level: Beginner


Comments: I have been running my Korallin BioDenitrator w/ Eheim 1048 Pump for 10 Months now. I don't remember what my No3 level was but it was high. I tried a fluidized reactor with biopellets (Reef Octopus)for a year and it did not work. After a couple of weeks with the Korallin BioDenitrator w/ Eheim 1048 Pump I was down to 0 Nitrates! 1 drip per second. I do use an air pump rather than siphonage, I keep it right on the same level as my sump. I did have a friend who needed a new home for his Lionfish before he went on vacation. I wasnt prepared to take it with me and aclimate it. I brought the fish home and left it in the opened bag in my sump and let the Korallin BioDenitrator w/ Eheim 1048 Pump drip into the bag. Dead Fish! rookie mistake just don't do what I did. Awesome Product.+ you can convert it later to a cal. reactor very nice.


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