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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.
Lastly, live rock will also help balance and stabilize pH in the aquarium. Calcium, alkalinity and other trace elements which are consumed by corals are replaced through water changes (using natural seawater or a quality synthetic salt mix) or the use of a calcium reactor , kalkwasser (calcium water – calcium hydroxide mixed with pure water ...
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.
All RAS relies on biofiltration to convert ammonia (NH 4 + and NH 3) excreted by the fish into nitrate. [4] Ammonia is a waste product of fish metabolism and high concentrations (>.02 mg/L) are toxic to most finfish. [5] Nitrifying bacteria are chemoautotrophs that convert ammonia into nitrite then nitrate.
Direct reduction from nitrate to ammonium, a process known as dissimilatory nitrate reduction to ammonium or DNRA, [6] is also possible for organisms that have the nrf-gene. [ 7 ] [ 8 ] This is less common than denitrification in most ecosystems as a means of nitrate reduction.
Nitrate-free meats may use ingredients like celery juice, which is a natural source of nitrates. However, it's yet to be determined if these are better for you than meats processed with synthetic ...
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]
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