Purple Kush Auto Help!

[BLACKAZZ09]

hello here are my 5 week old girls something funky is starting to go on with their leaves, the plants however have not stopped growing. They are in promix hp, advanced sensi bloom a&b few other advanced additives. ph is consistent @ 6.3 in and out. feedings every other watering distilled water calmag plus added with every watering at 5ml a gallon. ppm is rite around 900 last feeding. 600w hps they are sharing a 4x4x2 grow tent with some other autos the others do not show this stress in the leaves but they are becoming light green thinking i need to give them a hefty shot of grow nutes next feeding to get the color darker in the other autos? well i was told that autos use a lot of calmag so maybe i need to add more say 8-10 ml a gallon maybe foliar feeding 1/3 strength maybe? reddish brown spots yellowing leaves feel kinda ruff like they are tense lol if that makes any sense but they have always felt different than the other plants. any ideas?

 

[zack66]

I take it you mean 5 weeks flowering. Purple kush are nitrogen whores. Your getting close to finish so you don't want to overfeed the N. I'd certainly give them a shot of it along with your bloom nutes next feeding. They look great!

 

[tekdc911]

there fine this is the time the plant starts to rob sugars and nutrients that are built up in the system gonna look 10 times crunchier towards the end lol
and yes cal/mag is a normal deficency in auto's and it very well may be cal/mag "they pray for mag" and "cal is easy to spot" rust spots are a tell tale sign only problem is it takes time to remedy this its slow to respond to cal/mag and time brother is running out on your kushy kush seems to be towards the end

 

[tekdc911]

how far along are your other auto's ?

 

[BLACKAZZ09]

no not 5 weeks flowering, just 5 week this is 38 days old. autoflowers

 

[BLACKAZZ09]

all the autos are the same age 38 days old

 

[tekdc911]

ohh id give some cal/mag at 5 weeks wow they look great have you switched to bloom nutes and when did you switch? at preflowers or at actual start of flower ?

 

[tekdc911]

just be lite with it you can easily lock out other nutes with too much calmag

 

[BLACKAZZ09]

ohh id give some cal/mag at 5 weeks wow they look great have you switched to bloom nutes and when did you switch? at preflowers or at actual start of flower ?

Hey thanks! started yesterday on bloom feeding, sensibloom A&B @ 8ml a gallon voodo juice, sensizym, carboload, big bud, bud candy and calmag. 4ml a gallon

 

[tekdc911]

i just wait till the fan leaves are almost full yellow and drooping but everyone likes there medicine different