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I suffered from overwatering after flushing because I thought I had too high nutes.
Turns out it was probably just the lamp and maybe a touch of nute burn (sensitive clones).

Took a week for the soil to dry up during which time I saw they were in dire need of nutes - but I couldn't feed them because of the wet soil. Tried foliage feeding eventually, but that doesn't do much for cannabis, apparently.

When the soil finally dried out, I began to water only a little around the actual stem with a weak dilution of nutes, and just dampening the rest of the soil. This meant it dried out quickly and I could water them often with small amounts of nutes and monitor the reaction more easily.

I don't know whether others would go the same way, but it worked quite nicely for me.

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