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Nitrate (NO3) - A Growing Problem

The accumulation of nitrate or NO3 is a common problem in saltwater aquarium and reef tank systems. Here is information about what nitrate is, where it comes from, and the many ways to control, reduce or eliminate it in saltwater aquariums and reef tanks.
Top Nitrate Absorbing Products
Although not normally a major problem for most fish, excess nitrates (NOł) in a saltwater aquarium can be very detrimental the the health of most corals and many other invertebrates. A number of methods and materials, other than denitrator coils, have been utilized to absorb or convert nitrates to a harmless substance. Here are some of the top products available on the market today.
Nitrate, and Ways to Control It in Saltwater Aquariums
An introduction to nitrate or NO3 that explains what this element in a saltwater aquarium is, where it comes from, what the acceptable level of nitrate is for fish-only and reef tank systems, and how setting up a regular aquarium maintenance routine relates to controlling this problem element.
Long Term Nitrate Reduction
Keeping nitrates in check can be one of the most frustrating (and expensive) long term task a saltwater aquarist faces. Considering the price of a bag of sea salts, the cost in dollars (let alone the time) of repetitive water changes can add up to a tidy sum over time. Here is a simple, inexpensive, permanent method which reduces nitrates to near zero on a long term basis.
What Is A Coil Denitrator and How Does It Work?
Nitrate isn't good for our systems, be they FO (fish-only) or reef. You can buy a commercial denitrator that cost big bucks, is difficult to adjust, and requires feeding and monitoring to maintain proper operation. However, another very low-tech solution to very common nitrate woes is a coil denitrator!
Rapid Nitrate Reduction Water Change Method
Stan describes his water change method that can reduce high accumulated nitrate in saltwater aquariums quickly and safely, and includes an animated graphic of the process.
Using Mangroves for Nitrate Reduction
From your About Guides Articles Archive, an in-depth discussion about using live mangrove plants to reduce nitrate in saltwater aquarium systems, naturally!
Coil Denitrator Plans by Don
Don Carner shares his coil denitrator plans for making this unit that works to reduce nitrate in saltwater aquariums in automatically.
DSB (Deep Sand Bed) or No DSB?
Since the Live Sand Filter was created by Dr. Dean Jaubert, the pros and cons of the DSB (Deep Sand Bed) both with and without a plenum have been discussed. The DSB was created to help reduce Nitrates, but are their some drawbacks? Here is a quick overview of both sides of the debate.
Nitrate In Aquariums
From the Suite101 Aquarium Articles, Winston Vaughan Schoenfeld delves into what you can do to avoid accumulative excessive nitrate in saltwater systems.
Notes on Nitrate (NO3)
From the FINS Reefkeeper's FAQs, some brief notes on nitrate, how it is measured, and what levels are considered to be acceptable.
Old Tank Syndrome
From Aquatics Unlimited, this article by James Kostich addresses the problem of how an unwary aquarist is most likely to be rudely awakened to "Old Tank Syndrome" when he or she attempts to add new fish to an existing collection, because high nitrates have been allowed to accumulate due to poor maintenance care.

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