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Aquarium  Nitrites  Nitrogen Cycle

Nitrobacteria: The bacteria in a biological filtration system that converts nitrite into nitrate.

Bacteria which oxidatively transform nitrite into nitrate.
Bacteria which oxidatively transform ammonia or amonium to nitrite.

Nitrobacter sp. and Nitrospira Species: They convert the nitrite (produced from the breaking down of Ammonia by Nitrosomonas bacteria) into nitrate. Both of these are usually present in the filter.

Nitrobacter : 2 HNO2 + O2 è 2 HNO3 + Energy
Again, the bacteria for their own biochemical reactions use the amount of energy released in this reaction. The nitric acid formed this way is a strong acid, which will decompose in hydrogen ions (H+) and nitrate radicals (NO3-).

The next step is the bacteria strain of Nitrobacter. Nitrobacter takes even more time to adsorb nitrite, and in this stage nitrite is prominent and it is another dangerous time for a fish, even a hardy one.

The final stage is ~ bacteria converts nitrites to nitrates, which are far less toxic.
The success of the Nitrogen cycle depends on oxygen. If oxygen is in low levels in your tank, organic decay is slower and your water will have increased interim toxic products of ammonia and nitrites.

You cannot package and sell the Nitrosomonas or ~, as these bacteria are much too sensitive to isolate and keep on a shelf".

Bacteria such as nitrosomonas and ~ are aerobic and must be supplied with a constant flow of oxygen in the water to create suitable populations able to remove the ammonia and its by-products produced within the aquarium.
Air pump
See Vibrator air pump
Air valves ...

For years just about everybody has said these are Nitrosomas and ~ species, and most books will refer to these two forms. Now it appears that those bacteria may play a role in saltwater, but have little or no function in freshwater systems. Research from Dr.

Biological filter media provides a large surface area for live beneficial bacteria (nitrosommonas and ~) to cling to. Beneficial bacteria can then break down waste products such as ammonia and nitrite which come from decomposing organic matter like fish waste.

This is done by establishing the nitrogen cycle in your tank with the two beneficial bacteria (~, nitrosomonas). Not establishing this filter will inevitably kill any fish, regardless of what kind of filter you buy. Ok, enough said.

Bacteria called ~ will develop and they will convert the nitrites into nitrates. Nitrates are not as harmful to tropical fish as ammonia or nitrites, but nitrate is still harmful in large amounts. The quickest way to rid your aquarium of nitrates is to perform partial water changes.

The ~ bacteria, because of the increasing supply of nitrites, will multiply and increase in numbers. They, too, will be most densely populated in the area with the greatest surface area and oxygen content.

In the aquarium, we need beneficial bacteria, which are known as ~s.

and ~ sp.) The more the better. Start filtration, let the water settle for a few hours, and then experiment with adding fish. Usually with this established water, too, the all around water chemistry is a lot more stable and "livable" than starting from scratch.

~ bacteria then breaks down the nitrite into non-toxic
nitrate (NO3). This nitrate is then removed from the aquarium by performing partial
water changes.

Peat - This is a form of dried moss usually used to soften and lower the pH of the
aquarium water.

Denitrifying Bacteria: In the process of nitrification of wastewater, the two key bacteria of ecological importance are nitrosomonas and ~ia. These bacteria facilitate "catalyze" the reactions.

(~ bacteria were previously believed to fill this role, and continue to be found in commercially available products sold as kits to "jump start" the nitrogen cycle in an aquarium.

Nitrite is also poisonous to fish and is further broken down into nitrate by bacteria called ~. Nitrate is relatively harmless to fish but is a primary food for plants and algae. Frequent water changes (say 10% every week or two) will control nitrate levels.

The beneficial bacteria is called ~ and nitrosomonas, but the names are not too important.

Just remember that there are 2 main phases in the nitrogen cycle :
1) nitrification, handled by nitrifying bacteria in an aerobic (with oxygen) environment.
2) DEnitrification, ...

Animal waste (ammonia) is converted by NitrosomonasNitrites is converted by ~ia to → Nitrates
What Happens When You Keep Fish In Tanks?
Out of fish waste, the chemical we worry about most in a tank is ammonia since it is most toxic of the metabolic byproducts to fish....

Nitrites are converted to nitrates by ~. Nitrates are much less toxic and is used as fertilizer for live plants. It is harmful in great quantities, however, and should be avoided in the reef tank.

Contains beneficial bacteria nitrosomonas and ~. Works together with other beneficial strains to eliminate harmful toxins. Super concentrated formula. The ideal mix of beneficial bacteria to make the aquarium water purer and the environment healthy.

Nitrosomonas bacteria process the ammonia into nitrite, which is also toxic. ~ bacteria then break down the nitrite into nitrate, which is much less harmful. Nitrate is either used up by algae to complete their biological cycle, or is released into the air as nitrogen gas.

Nitrsomona bacteria convert the Ammonia into Nitrite (NO2), which is also toxic. ~ia then break down the nitrite into the non-toxic Nitrate (NO3). This Nitrate is then removed from the aquarium by performing partial water changes.

After ammonia has been produced, Nitrosomonas species of bacteria convert ammonia to nitrite (NO2). The nitrite is then converted to nitrate (NO3) by ~ and Nitrospira species of bacteria. Lastly, anaerobic species of bacteria convert nitrate to nitrogen gas, which dissipates.

Another type of bacteria, ~s, break down the nitrite (NO2) into less toxic nitrate (NO3). The nitrate is absorbed by plants or algae, or is removed when a water change is carried out. Although nitrate is less toxic than other nitrogen compounds, in high levels, it can be toxic.

Whatever the source, nutrients follow a general path of decomposition from solids to solution; from ammonia to nitrites to nitrates. This decomposition is accomplished first, by decomposing animals (Hermit crabs, brittlestars etc...) and further by decomposing bacteria (Nitrosomas and ~).

(However, ‘poor water quality’ poses associated risks and should be dealt with appropriately). Nitrifying bacteria (~) are now responsible for a further transition, converting the NO2 into Nitrate (NO3).

~ bacteria then break down the nitrite into nitrate, which is much less harmful. This is as far as the cycle goes in most tanks, though under the right conditions, the nitrate is further broken down to free nitrogen gas. ozone A gas, O3, which is very reactive.

See also: See also: What is the meaning of Water, Fish, Bacteria, Aquarium, Nitrite?

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