Nitrogen Cycle and other common chemicals in Aquariums

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SalviniCichlidFan

Dovii
MFK Member
May 30, 2021
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www.andrew-li.org
Hey everybody,

After 4 years of fish keeping, I am still confused with how the nitrogen cycle works. Can somebody explain it for me? Also, I do not really know the other more niche chemicals in fish keeping such as TDS and other metals and stuff. Can somebody explain these things for me as well? I find that this will be very helpful for my future fish keeping experience. (another reason why I'm asking this is because I am trying out for the Science Olympiad Environmental Chemistry competition and the specific topic this year is freshwater chemistry, so I find the members here to be a good source of information, because I cannot find information on the olympiad website)
I know some of you only look at threads with a picture so I'll post one:

Orange Peacock1.jpg
 
im also confused about the nitrogen cycle
i assume that algae does the same thing that plants do and that they use nitrate, nitrite and ammonia? or do plants/algae only use ammonia and nitrates but not nitrites?
 
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