I have a White Widow underneath a 400 w hps in veg right now. It is in ocean forest soil and I am not currently using any nutrients. I tried using the general organics line of nutrients but i seem to burn the plant every time. My question is why is my plant yellowing like this? The average temp is about 85 to 90 and I know this is not good. The problem is though I cannot really ventilate the room. I thought about using CO2 so the high temps wouldnt be too much a big deal. If anyone has any other ideas on how to cool a room with no ventilation please let me know. The average humidity is round 30%. Can someone please tell me why my plant is yeallowing like this and what I can do to fix it?
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