need help gurls lookin real bad

I knew the ph balance was off so i corrected that its now sitting in at least 6.2 i put the water in yesterday..it was lookin bad then but now it looks even worse.. it was light green now its even lighter im also not to sure how much to feed the gurls, there 6 weeks old..I've been feeding pure blend pro grow 3-2-4 every 3 days...there showing light green yellow on the older leaves with burnt tips and its spreading to the younger leaves..also a purple stain in the middle of young leaves lookin as though it was from the ph lvls..i really dont noe whats wrong plzz help...im runinng a 600 watt in a dwcs with a 14/10 system plaz help im tryin to make them survive to at least start cutting clones and hopefully have a good harvest with these as well thx..

You should be at fuel strength nutes in 6 weeks of Veg.. Are you using R/O water ??? Could be Cal/Mag deficiency R/O water filters out calcium magnesium.. or it could be dying because your PH was too high if you are using DWC 5.8 is perfect maybe you got nutrient lock out because of the high PH.

Indeed. R/O water is a great idea if you're not using it currently. You also may be over watering and have pythium wilt, which is a destructive root fungus that takes hold upon overwatering, especially if the plants have been stressed to begin with. Your plants turning a lighter color at first, then lighter is a sign of pythium. Once it's gone too far, it's not worth saving the plants. This may not be your problem though. It's tough to say without knowing the conditions of your scene. There could be a number of problems culminating together. It may help if I knew what you are using for a substrate. A definite sign of pythium is a whitish, grey moldy substance around the base of the stem (it's also known as stem rot).

omg dont tell me its not worth saving i have to save them...i wasent usin r/o water str8 tap water what can i do to fix this if its cal/mag deficiency???and can i pour ph down that i got from a fish store right into the water???

Hey, buddy. You're freakin! Chill. Just start over. If your plants are looking like that now (not even in flower), then they will never reach their full potential. I had to learn the hard way too...get an R/O unit if you want to get serious. It's the only way you have complete control in a hydroponic system, nute-wise. You should also have ppm/pH meter to gauge your nutrient solution.
Also, clones from those plants are a no go. You'd be spinning your wheels. Just take a deep breath and start over.

Oh, and if you've been watering with tap water then it's definitely not a calcium deficiency because there's always calcium in tap water. Depending on what part of the country you are in, the tap water can be fine. But if you live in a big city there's no way. I can't tell you what the problem is.

...and don't pour pH down, or any concentrate for that matter, into another solution. Dilute it first at least 50:1.

alright but see thats cool and all il geta r/o thing started but your telling me i cant save them that cant be give me a solution thats what i need theres no way that the gurles are dead they can still be saved so plz look at the pics ask me anything u want il answer your questions jus help me save them plzz..

Is there any way you can upload some larger pics of the whole plant and your setup? It's really hard to tell anything from those little pics.

honestly thats the only thing i have what do u want to know il fill u in...it has light brown spots growing on the gurls and now its startin to have purple engraved spots.. and it went from yellow to to a light yellow and brown tips...

spartinniffer said:

honestly thats the only thing i have what do u want to know il fill u in...it has light brown spots growing on the gurls and now its startin to have purple engraved spots.. and it went from yellow to to a light yellow and brown tips...

Click to expand...

WE NEED MORE INFO. Cough it up buddy . Whats the set-up like? you said DWC, and watering every three days. Please expand on all this.
Pots? Bed? Sizes.
Watering every three days because they all need it or just to stay on schedule?
no pH pen or ppm pen?
pH down without a pen or ph paper or the little test kits they sell?
you need a 1 mL dropper to use pH adjusters, they cost a buck at any pharmacy. are you tasting your fertigation solution for acidity? just messsing with ya, but if you want help we need details.
are you lifting pots to see if they need water?
sup with your water source?
if you are in a city go to your water company's site and check out your water analysis.

This looks like serious root issues, probably pH is way off in the rhizosphere. I've had plants that looked like this, they can be saved, yield is already compromised. I'm already thinking you should -zyme your roots up, then reinoculate. some light foliar, and raise your lights if you go HID

are you letting your water sit for a while to get rid of the chlorine,its best to add a bubble stone to it also,it helps to evaperate the chlorine out and adds oxygen to it.it could be a combination of the chlorine and a cal/mag def. but more details would help