In this hobby, it can be a mental handicap to always think of comprehesive ecological balance, nitrification and denitrification.
This is true especially in QT of fish. Nitrate is harmless to fish at concentration commonly encountered. There is much utility in nitrification alone without denitrification. Thus, LR is a poor medium of filtration in QT.
One should not think of ecology in a QT.
In a DT, ecology is of course of great long term significance, but one also should consider the timing of the correctness of the comprehesive ecological perspective.
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