Help me asap please

They started doing this a week ago. I am growing 3 strains: critical super silver haze, northern lights (one in the pics), and bubba under hps in 3gals of soil. Tiger bloom is all I have left. Tell me how to fix it. I thought is was nitrogen, but it isn't getting better so I think it's ph but idk.

Are you able to test ph?You have Epsoms salt handy?whats your dose t/b?light wattage and ballast?

you can raise the lights for the plant to catch up for now.I do not know if tiger bloom can be used as a one part.

too much nitrogen

scratch that i mean magnesium https://www.rollitup.org/marijuana-plant-problems/488004-guide-nutrient-deficiency-toxicity.html try some cal-mag its great for helping your plant flower. just dont go overboard
edit: too much magnesium to clear up any confusion. im saying that the cal-mag may be a more controlled way of giving your macro/micro nutes.

Whats the ph and temps? also stop pulling the leaves off.