Bad Nute Burn - Help appreciated (Pics)!

[klockwise]

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What type of medium: Hydro - rockwool cubes in hydroton on an ebb and flow table
Indoors or outdoors? indoors
What strain? Easy Ryder and Blue Ryder (Autoflowers from Joint Doctor)
How old are the plants? 4 weeks
What type of lights and how many watts? 1000 watt air cooled HPS
How far from the lights? 24 inches
What is your watering frequency and source of water? table floods 3 times a day for 15 mins from a res.
What, how much and when was it fed? NPK? Ionic Nutes - was using 1/2 str grow, once they started flowering I switched to 1/4 str bloom.
What is the medium/runoff pH and PPM if in hydro? PH is checked daily to be between 6-6.5
What are the temps and humidity in the room? High 83 (day), Low 71 (night) - Humidity 45-60%
What size pots? 1gal and 2gal Smart Pot grow bags
Any bugs? Look real close. Negative
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I have a strong feeling that this is a chemical burn from the nutes. I think I should have flushed my plants for a week before starting them on the bloom nutes, but it was so diluted I didn't think it would matter. I have been using clean PH'd (6.0) water for the past 4 days, though it seems they only get worse. Here are some pics:









So I was wondering, Should I leave these damaged leaves alone, or should I slice them off close to the main stem and allow the undergrowth to get more light? What is the best way to help my girls recover? Any help, input and opinions are greatly appreciated!

Klockwise

[Darkhosis]

I'd cut off all the damage because they aren't doing your plant any good now. Just sapping energy to repair the damaged leaves.

Cut off all the yellow, flush, and let them recover. Going to take a couple of weeks. At least you're in the veg stage and not in the budding stage.

[klockwise]

Originally Posted by Darkhosis

I'd cut off all the damage because they aren't doing your plant any good now. Just sapping energy to repair the damaged leaves.

Cut off all the yellow, flush, and let them recover. Going to take a couple of weeks. At least you're in the veg stage and not in the budding stage.

These are autoflowers and they have already begun flowering (just in the last week) which is why I am hesitant to cut off the damaged leaves. They have another 6-8 weeks and they will be done.

How long do you suggest flushing for with clean PH'd water? a week?

[Darkhosis]

Originally Posted by klockwise

These are autoflowers and they have already begun flowering (just in the last week) which is why I am hesitant to cut off the damaged leaves. They have another 6-8 weeks and they will be done.

How long do you suggest flushing for with clean PH'd water? a week?

I'm sorry I thought your plants were in the vegetative state. Now that they are flowering it makes it a bit rougher on your girls.

Don't flush for too long! Just a few days to make sure whatever is causing the problem is flushed completely out with clean PH'd water. Mainly closely monitor them and within 3 days you should see them perked back up. You'll know they'll start growing again and no new burns. What this does is allow the clean water to thoroughly penetrate the plants vascular system.

Then get the proper nutrient levels back in as soon as you can because your buds need them ASAP!

I still would cut off all the dead yellowed leaves so they can be replaced with new ones.

[klockwise]

Any other opinions or suggestions?

[SmknVTEC]

Yes the pH is wrong. Most strains like it below 6.0 pH in hydro. Your nutes are not being up taken properly because of the pH. I missed the PPM. What is it?

[klockwise]

Originally Posted by SmknVTEC

Yes the pH is wrong. Most strains like it below 6.0 pH in hydro. Your nutes are not being up taken properly because of the pH. I missed the PPM. What is it?

Thanks for the input Smkn. I am going to drop my pH a tad bit between 5.5-6.0. Unfortunately I have no way to measure PPM right now