So i have 1 rqs critical in 25l dwc with 4 airstones in 3x3 tent, water temps 18c, rh 50%, nutes bcuzz hydro a/b and ata calmag 0,7ml/l, ec 1,25 m/s, ph 5,8, 3000k 480w qb led dimmed to 80% 90 cm from tops. It has been flowering 3 weeks now and leaves are losing colour, no idea why.