Help dying plants

Week 5 of flowering and 2 of my girls are dying. All 4 plants received the same nuts and light. The two on the left where defoliate it during week four Of flowering and are fine, The two on the right were not defoliated and they are both dying. Wtf, the ph is good on them all. What happened? Should I just give up on the 2 dying ones??

jdp55 said:

Week 5 of flowering and 2 of my girls are dying. All 4 plants received the same nuts and light. The two on the left where defoliate it during week four Of flowering and are fine, The two on the right were not defoliated and they are both dying. Wtf, the ph is good on them all. What happened? Should I just give up on the 2 dying ones??

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What and how much are you feeding them?

They look overfed. Notice the burnt tips and how it spreads

How close are your lights and what wattage? And what is the temp in your room? They look fried.

Need to take pics with normal lighting.

Looks like you microwaved the poor things!!

78 to 80 degrees. Advanced nutrition, lights 18 inch’s from tallest plant. I was feeding half of the recommended feeding I got from advanced nutrition

What is the temp of your reservoir and root zone. They look extremely overfed and fried from that. What is your RH as well? Im gonna go with overfed, by a lot.
You should always start out with a low dose of nutrients and work your way up. Did you notice burnt tips before? Anytime you begin to notice burnt tips you know you are at your max nutrient dosage and need to back off a bit.

Yea you have the Claw which is a sign of N tox, also the leaf tips are severely burnt bro. I am unsure how hydro works but I would suggest emptying your res and starting over. Don't add so much nutrients. Maybe 1/4 dosage for right now, Let your plants get some fresh water into them.

Thank you, should I go just straight up water with no nuts for a few days. What threw me off was the fact only 2 of them have really been effectived but now that you all say nuts burn I noticed the other 2 have a little brown starting on the tips. Any advice on what to do to fix this would be great appreciated, and thank you everyone for the fast answer

jdp55 said:

Thank you, should I go just straight up water with no nuts for a few days. What threw me off was the fact only 2 of them have really been effectived but now that you all say nuts burn I noticed the other 2 have a little brown starting on the tips. Any advice on what to do to fix this would be great appreciated, and thank you everyone for the fast answer

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honestly I don't grow hydro and am probably not qualified enough to say straight water or not. I don't imagine it would hurt it more than is already being done. But maybe someone else could chime in about it.

This is how you should feed a DWC grow.... or close to it.
http://www.ilovegrowingmarijuana.com/hydroponic-growing-schedule/

Thank you