Im in the process of flushing but the leaves are not changing colour

iloveit said:

Im using an Atami Wlma drip feed system, I began flushing with fresh water & Hygrozyme PH 6.2/PPM 300.
Its been 6 days into the flushing process & the leaves still havnt began changing colour. The only difference are that some brown spots have developed.

Im just wondering why the plants are not taking in the Nitrogen yet.

Anyone....?

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