DEAD/DYING LEAVES 3DAYS IN FLOWER!!!! HELP!!

What type of medium? Soil
What brand and type of soil? Fox Farm Ocean Forest
Indoors or outdoors? Indoors
What strain? Purple Kush From clone
How old are the plants? 3 days into flower
What type of lights and how many watts? one 4 ft florescent 4CFL about 16,000 Lumen
How far from the lights?4"
What is your watering frequency and source of water? Water whenever soil feels light and dry use RO water
What, how much and when was it fed? So far no nutes was gonna get them tomorrow thinking of Roots Organic or Fox Farm Line(any suggestions?)
What is the medium/runoff pH and PPM if in hydro? 7
What are the temps and humidity in the room? 77 at night 80 day
What size pots? 3gal
Any bugs? None visible
Any other pertinent info? Had a white mildew type on a few leaves real light got an organic pesticide from hydro store. use every week but hasn't needed lately. 2 fans in the room.


Hello again GC, I am coming to you for help because i am just not experienced enough to diagnose the problem i am having with one of my 3 ladies. :mad:

I just switched them over to 12/12 3 days ago and my largest purple kush lady is having problems, so far 5 medium-large bottom fan leaves are turning yellow and then get dark color and crispy on most the leaves and it seems to be spreading not s fast as the first day or two tho.

My question to the community is do I just need to start feeding the nutes, or is it a PH problem? or other?:confused: I am having a bit of a cash flow problem now which is why I don't have my nutes yet anyway.

The pictures are of the 2 leaves that are damaged (4 were pulled off cause they were completely gone) now some look like they might be starting nothing on new growth...yet. and the last picture is of the full lady, sorry about the not so good quality but its the only camera I have at the moment.

are you adding calmag to your ro water? cause it kinda looks like calcium deficiency to me.

I have not used calmag or any kinda nutes what so ever

thats your problem. get calmag fast cause in flowering plants love it to build strong stalks in preparation for those big buds. if you wait longer your big sugar leaves are going to eat itself and your buds will greatly be affect by that. also you should be feeding it some nutes cause your leaves look a bit pale

is your tap water hard? if it isnt that would address the calcium problem. just leave the water out for a day to dissipate the chlorine