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Nitrifying bacteria in the aquarium grow on all surfaces, but particularly in areas of high water flow and high surface area such as the filter. Allowing ammonia to be converted to nitrite, and on to the less harmful nitrate, minimizes stress and injury to aquarium fish.
A history of the tank, such as filter changes, power outages, excessive feeding, or the addition of microbicidal or antibiotic agents to aquarium can aid in diagnosis. An ammonia test is the most sure way of diagnosing ammonia poisoning. Ammonia affects fish metabolism and their ability to absorb oxygen through their gills.
This increases the amount of ammonia produced in the relatively small volume of the aquarium. The bacteria responsible for breaking down the ammonia by converting it to nitrite, Nitrosomonas, colonize the surface of any objects inside the aquarium. The bacteria that then convert nitrite to nitrate are Nitrospira and Nitrobacter. [5]
[12] [13] Complete nitrification, the conversion of ammonia to nitrate in a single step known as comammox, has an energy yield (∆G°′) of −349 kJ mol −1 NH 3, while the energy yields for the ammonia-oxidation and nitrite-oxidation steps of the observed two-step reaction are −275 kJ mol −1 NH 3, and −74 kJ mol −1 NO 2 − ...
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Nitrate levels peak later in the startup phase as the system completes nitrogen cycles and maintains a healthy biofilter and these bacteria grow into a mature colony. [37] with nitrate levels peaking later in the startup phase. [citation needed] In the nitrification process ammonia is oxidized into nitrite, which releases hydrogen ions into the ...
Nitrates affect the nitrate‐nitrite‐nitric oxide pathway, in which nitrates are recycled in blood and tissue to produce nitric oxide — an important molecule for vascular health and blood flow.
The process of curing involves salt, nitrates, and sometimes other ingredients or techniques (like smoking) to significantly lower the moisture content and inhibit the potential growth of bacteria.
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