Hard to tell you exactly when we can't see the plant. DWC can be a very short flush. I would see what it looks like at the 5-day mark and go from there.
During the last few weeks of the plant's life, you should keep photoperiods plants on 12/12 light cycle. Some growers will give their plants a period of 24-72 hours of darkness right before harvesting.
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Hard to tell you exactly when we can't see the plant. DWC can be a very short flush. I would see what it looks like at the 5-day mark and go from there.
I am doing a dwc system, how many days of just water With flushing for harvest?
Flushing phase to harvest
Are you talking about the flush phase prior to harvest? Or are you doing a flush mid-grow?