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Resin production continues to accelerate quickly. Evidence of calcium deficiency becomes more evident - probably from week 4 or 5 of veg and beyond. pH has been kept low at 5.7-6.0 throughout and did some defoliation which might have contributed to this problem. Did complete flush of reservoir and refilled with water adjusted to pH of 6.2 to maximize Ca uptake. Also added calcium and magnesium supplement to assist in resolving this issue. Also starting to back off the GHE Bloom nutrients slightly.