yellow tips on new growth please help

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That isn't N deficiency, it affects the lower leaves first. I think it is a micro nutrient deficiency, and I think it is Zinc but I wouldn't swear to it. Regardless, you are far enough along that you could have been feeding some time ago. Make sure your ph in the soil is proper, like 6.5-6.8 and give her a good dose of nutrients. Do you have micro nutrients as well? If not, check the back of your nutrient bottles and see if any contain chelated zinc. If so, see if they give instructions on foliar feeding. That will get the nutrients to the plant the quickest. Don't foliar feed only, also feed the soil but do both. Shoot me a pm if you need any more help and I will come back to your thread.
 
Is anybody going to help me!

One more impatient reply like that and I won't be back. Be patient bro, I am at work and trying to help you out in between doing my real job. Unfortunately I am not getting paid to watch the forums, I do it out of the kindness of my heart. Have a little patience bro.
 
I've gt bio bizz veg I'm going to gie then 1/4 strength n see wat happens thanks fr your help :-)
 
Get the biobizz range you can get 250mil package of 3 off eBay nice and cheap the root juice worked wonders for me, algamix and top max for when she is blooming,

You need biobizz grow and bloom they work as a package i suggest you read up on this buddy :) get the chart, its in the forums somewere ;)


Good luck
 
I have ran into this exact same issue.plants look beautiful but at top of plant,new leaves have yellow tips.Anybody ever find out what this was exactly?
 
it looks like nutrient burn .

run 2-3 watering cycles with plain ro water and nothing added . the tips of my white widow AF started doing the same thing so i made some calls to some Humboldt growers and they said i had nutrient burn and to run ro water for a week and sure enough it cleared up and are looking good again .
 
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