going by your first photos, I would say 'magnesium deficiency', and, you might re-calibrate your pH tester, Reverse-Osmosis water should pH just like distilled water (7.0) ... unless, your filters need changing ... :smokin:
the image reaper Reviewed by the image reaper on . Yellowing - Form Completed & Pics I don't know what to do. Soil runoff is at 7.5 even after flushing with 3 gallons of 6.8. E-indoor or outdoor - INDOOR E-soil, soilless, coco, aero, or hydroponic - SOIL E-specific medium - FOX FARM OCEAN FOREST - STRAIGHT FROM BAG CSL-Soil type/brand - FOX FARM OCEAN FOREST - STRAIGHT FROM BAG SCL-Anything you have added to the soil - PH'D TAP WATER SCLR-Soil or slab runoff pH - 7.5 E-Water source - TAP E-Source water pH - ADJUSTED TO 6.8 Rating: 5