What is going on with my plant? Under a 1000w HPS. flushed 1week ago down to 400ppm, Today added advanced nutrients testing at 800ppm with 1.2l per pot.
whats ph of the nutrient solution? cant really tell in this lighting but looks damn yellow aside from the necrosis.
pour a little DI water through the pot and test the ph of the solution coming out of the pots too.
You spraying the plants w solution? sometime burns will look like this. other times its nutrient related. ph will effect nutrient availability.