PLEASE HELP!!! I need your guys help on this plant issue before these babies die!!!

Okay heres what im using. 1 1000 watt hps , and one 400 watt hps. Im using deep well culture with three plants per 5 gallon bucket. I am using GH nutes with a ph around 6.0. OVer the past week ive noticed some yellowing of the leaf with a downward curl with a few "burns" showing. I only use a fan 12 hours a day and not much air change in the room. So Im wondering could this just be a heat issue? heres the pics http://imgur.com/hpxkO1R,ZglKLni,jZnefO3,2RgdfiA,Hd8NznT thanks so much in advance for your help guys

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Get the temps below 80 and the ph 6.5, try to get a pic.

Well, it could be a number of things. bugs in the medium hurting the roots,or mabe nutriant burn. or a ph problem. or a heat issue. hope this helps.

what's the npk? looks N deprived. What's the ppms?

So let me get this right. You have 3 plants sharing one container? That would be one problem. The other would be a lack of proper air exchange. Especially with that kind of lighting. I don't know how many plants you have, or how much space you have those lights in, but that's probably another factor. My opinion would be to add proper ventilation to your grow room/space, adjust your lights so that they don't overlap (points where the two lights converge, if that is an element, will cause extra heat to build up), and maybe re-situate your grow room/space to allow for maximum light coverage, and to redistribute the heat from both lights. This of course, would only be the beginning. Hope that helps steer you in the right direction.

IF you click the link itll show you 5 pictures. My ph is 6.4 and my temp is at around 75. Also this is DWC so I dont think I could have any bugs at this point

Also I will move my lights today and get some air ventilation in there and see if that helps. Im just making sure this doenst look like a nutrient deficiency really

It could be a nute deficiency, but heat stress mimics nute deficiency, so you have to be sure. Place your hand slightly above the tops of your plants. Leave it there for about a minute. If the heat is uncomfortably hot on the back of your hand, then you definitely have heat issues. And that would cause the downward curling of your leaves, as well as the necrosis. Once you figure that out, then you can decide whether or not it's a nute deficiency.

It not the light, bugs or heat. Has to be a nutrient issue.

How do you deduce that? Please, explain yourself.

okay i checked out the light heat and nah it doesnt seem to have an issue there. I dont know my ppms as I do not have a tester but I am using well water with a base of about 600 ppm. Im using the GH lineup at 50 percent solution for flowering so that means I only used 2.5 tsp of nitro for it.. So do i need to go back to vegging nutes until they heal?

Just saw the pic its a heat or ph issue as i said.

okay i checked out the light heat and nah it doesnt seem to have an issue there​

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What do you mean you just checked it out? you need a peak memory thermometer to see how hot its getting in the room.

imrtlrku said:

okay i checked out the light heat and nah it doesnt seem to have an issue there. I dont know my ppms as I do not have a tester but I am using well water with a base of about 600 ppm. Im using the GH lineup at 50 percent solution for flowering so that means I only used 2.5 tsp of nitro for it.. So do i need to go back to vegging nutes until they heal?

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yeah, it's low on N, I would feed with some veg nutes.

I put my hand directly under the lights and slowly moved them away until there was no radiant heat hitting my hand and left it there for a moment. My plants are an inch or more under that heat area. Thats how i checked it out

Awesome thanks for that since the troubleshooter doesnt load any pics on that thread

imrtlrku said:

I put my hand directly under the lights and slowly moved them away until there was no radiant heat hitting my hand and left it there for a moment. My plants are an inch or more under that heat area. Thats how i checked it out

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You're supposed to leave it where the heat is (above the tops of your plants), and that's how you tell. You need some equipment bro, if you're running that kind of setup. My initial advice still stands. Heat first, then check for nute deficiency.