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Filters do not work well it the humidity is high either in the grow room or outside. The filter clogs and then doesn't work properly

2-3 weeks, buds look really good but smallish. ppm is 1640, high, ph is about 6.1. I am thinking of draining my res about half and adding water and ph-ing to cut the ppm. I am supposed to water tonight when the lights are on but may wait another day. Does the cutting the ppm method above...

This is my first grow and all has gone well until 5 weeks into bloom cycle. Hydro/Indoors. Yesterday I noticed some brown spots on the leaves in the canopy, not burned leaves as no height change in the last couple of weeks. Tonight is it was many more leaves and the entire leaf. The leaves have...