It's not the tent,but do you by chance use molasses or a acidic additive,cause this is a ph issue that is gonna lead to lockout,the best solution is to adjust your ph,but don't add anything to your soil cause it will make it worst.What saddens me is that 80% of these threads similar to this one people will say add cal+mag(which is a bad solution)and this makes things worst.Try giving your plant a bottle or 2 of purified water and the problem should stop but the leaves will still be damaged. That applies to you too legalizedabuds.
Can anyone tell me what the hell this is. I know it might be all in my head but this happens EVERYTIME I grow a plant in the grow tent I have, but anything that is grown in the actual grow room, this never happens. Maybe its in my head but still yet WHAT THE HELL IS THIS. I have asked this question once before on my previous plants grown in this tent and everyone thought it was a mag diff so I flush with Epsom and dose with Epsom. Besides I feed all my plants the same thing, same soil, same light, same temp, same rh. HELP!!!!!!!!!!!!!!
