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I am conducting small scale carbon dosing experiments and came across what looks to be a strong and repeatable effect. I have seen discussions about the possible importance of PO4 in nitrate consumption during carbon dosing. Data in the graph below supports this notion. Each curve represents a different initial phosphate concentration. The phosphate concentration at the end of the experiment is undetectable. This data might explain why in some cases nitrate reduction seems to take forever or even stalls.
In this experiment design, I start with a sngle large dcarbon dose. Slight haziness but no massive bacterial blooms were ever seen with this approach.
I am wondering if dosing PO4 along with carbon might speed up nitrate removal. I might try this with my fish only system.
In this experiment design, I start with a sngle large dcarbon dose. Slight haziness but no massive bacterial blooms were ever seen with this approach.
I am wondering if dosing PO4 along with carbon might speed up nitrate removal. I might try this with my fish only system.