Deficiency ??

First post, third grow! I was growing with four 1000W HID's and just switched to 12/12 and I also replaced my lights with four MagPlus LED's. I'm using botanicare ready grow in 5gal smart pots with advanced nutrients. The only thing I've added was some magcal since that is recommended with led's. Iv'e been real careful watering as to not over water since that tends to be a common initial problem since switching to led's. room temps are between 74-80 with 40% humidity. Any help would be greatly appreciated. Thanks

lookin at the pics, i would assume heat, so if you switched to LED to solve high temp problems, give the plants some time to adjust to the new environment

Thanks for your reply Bub! I didn't get this till I switched lights? The only other thing I did was try to reduce the watering? Not all of my plants have this leaf problem but a lot of them have a very small brown tip. Tried to include as much info add possible.

yea heat or nute burn, whats the pH at?

Nick. Ph 6-6.3 steady. I use a Hanna grow check. My ppm after mixing my nutes are around 1000 minus 130 for my tap water. Not sure how it could be heat because I'm using led and there is almost no heat? Light burn? I have the lights 16" away? Thanks

one of two things if your using mylar or tin foil for light reflection it could be hot spots burning the leaf tips that or nitrogen def. i like to mix my bloom and veg fertalizer for the first 3 or four weeks of flowering. plants need nitrogen up to half way into flowering in my opinion. nitrogen is also the chief building block in the production of THC...odvously important to any grower

That's what so frustrating!! To someone who is newer at this a lot of this stuff looks the same? So it's either nute burn of nitrogen deficiency? So if it's nute burn and I give them more nitro it'll get worse? If I just flush them some and it's nitro def. they'll get worse?

akpaco said:

Thanks for your reply Bub! I didn't get this till I switched lights? The only other thing I did was try to reduce the watering? Not all of my plants have this leaf problem but a lot of them have a very small brown tip. Tried to include as much info add possible.

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my bad, i was high.. i assumed you switched to LED to solve a heat problem.. mainly cause the leaves look a little heat stressed, curling upward and all...but if the problem happen after the switch, my next question would be is there a fan blowing directly on the leaves? and if it is a nute problem, imma guess overwatering, but some pics of the whole plant will be more helpful man