You can only feed aggressively (higher ec) if you have dialled in conditions.Charts are guides only.As JB said half it at least.A good flush wouldn’t go amiss.
Everything slows down when it’s cold if you are going to carry on with any kind of success then you need to be heatimg the dark hours and also the water.
If the water is room temp then it will be 13 at times which will cause root shock.
Nothing below 18 ideally.Balls are a sign of cold stress.Ive suffered the same fate once.
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