Hi whatsyourpoison and welcome

At first glance it looks like Nute Burn.

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http://boards.cannabis.com/plant-pro...anted-one.html
Dreadscale Reviewed by Dreadscale on . Yellow tips please help my babies..... Hey guys i was just wondering if anyone would be able to give me a few tips about what problems my plants might be facing. There are 2 photos that i attached that will hopefully show the problems fairly clearly. My plants have been generally pretty good and have been growing fairly well unitl just recently when the tips of the leaves started to turn yellow and curl up. I have been reading about some things and i think it might either be (N) deficiency or that they are burnt from too much Rating: 5