Hi so you want tol learn about our jobs well im in pH. It stands for potential of hydrogen (yes i rememberd).what i learned is that 0,1,2,3,4,5 is not so good 6,7,8 is good (7 is sorta the best to get) 9,10,11,12,13,14 is bad anything above 8 is bad because if its not 6,7,8 then the fish will die and we dont want that. There are other jobs other than pH : there is flow rate,ammonia,nitrates,temperature,dissovled oxygen, turbidity

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