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SPECS: -800w DS at full power 32" from canopy -Ambient temp 82 deg -Res temp 70 deg -Res PH 5.7-5.8 (ideal) checked every 12 hrs -RH 56% (just did res change spilled some water, normally 60%) -Co2 1250ppm ( increase with tank and solenoid valve) -Nutes are Maxigrow 1 tsp ppm is 450 -Calmag was...

My first DWC grow been going pretty good so far. I am a seasoned soil grower. These babies sprouted Feb. 6. Out of 14 plants only a few are showing any signs of a deficiency. Ringo is the most severe and ironically my biggest. Any help/ suggestions/ diagnosis would be greatly appreciated...