growpraesi

Looks like lightstress. Upper buds stamps stay White and thin. Lamp looks oversized

The answer is very easy: TOOOOOOOO MUCH LIGHT!!!! Yout Plan doenst do photosythesis any more, except the lower buds which gains less light. That is part of an emergency plan wich the plants are running in case of to much light. Dimm it oder increase distance. After a fwe days, the process will be working again. Believe me! Got the same Problem times ago. My thoughts: The is never to much light. Bis that was wrong. Got the same issues than u. U are using 2x 750 W LED??? REALLY????? for wich tent? 10x10ft???? And on top of that, you are running 20 h of light??? TOOOOO MUCH!!!! Ich was using SpiderFarmer SF4000 in 3x3, tooooo much light almost killed my ladies. Scan your PPFD level (able with a smartphone). Hold it at the position of the colas / top buds. If it is above 1000 / 1200, you need to put CO2, otherwise, DIMM IT!!! I got Levels between 1500 und 2000. Not possible without CO2. If you are able to apply CO", leave the Light as now. My english isnt so good. Hopew u could understand.