Can someone tell me whats going wrong here? PIC INCLUDED !

this is happening to one of the plants and its the main fan leaves, the others seem to be fine.

just to add, 2nd week of bloom, temps 80-85, lows around 70. plenty of air circulation, the light may have been a touch close, but i doubt it was

Is that leaf attached to a plant? If not that could be a problem.

oh dear, how sad

looks like ph related fert burn.

check the ph of your runnoff, then flush accordingly.

I have the same except just white/yellow small tiny scratches clost to the tip. I would think spider mites but not sure. Get that 30x micro and look under the leaf for small eggs if you find any just grab an organic pesticide and spray the mother fuckers.

second week of flower tells me you have a toxicity (maybe def). i often see this in my garden but not this early. usually i will just yank it off and forget about it. in your case i wouldnt though. is this on one plant only?

if ya look at the leaf you will see that in the green area its turning yellowish. not the damaged part at the tips but the rest of the leaf.

which nutes are you using? did you do a trasitional feeding into flower? (half veg half bloom nutes)

whats the npk of your flower nutes?

FriendlyGuy said:

I have the same except just white/yellow small tiny scratches clost to the tip. I would think spider mites but not sure. Get that 30x micro and look under the leaf for small eggs if you find any just grab an organic pesticide and spray the mother fuckers.

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it cant be mites because of the pattern. mites would take the chlorophyll from patches all over the leaf, not on the tips.

it is just one plant, i have no run off as im using auto pots, leaves yellowing on one plant a touch an like a rusty colour burn on the leaf as u can see, but not on the tips so i doubt its nute related. i am using medium strength A.N bloom a & b, big bud, bud blood, voodoo juice, sensi cal, but they dont work well with auto pots because the mix can be quite thick SOOOOO... im now going to start using canna a and b.......
i dont spray anymore with foliar either and when i do its dark, so thats out of the question too!!!! hmmmmmmm ???

rzza here is what im using, and i didnt mix grow and bloom in the transition as the A.N Chart never stated too...
http://advancednutrients.com/hydroponics/products/sensi_bloom/sensi_bloom_product_information.php

That is a burn IMO, I have had leaves that look exactly like that, water got on the leaves during watering, didn't realize, they fried under the lights.

Appears to be a magnesium deficiency.

elfroggo said:

That is a burn IMO, I have had leaves that look exactly like that, water got on the leaves during watering, didn't realize, they fried under the lights.

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the answer lies with this man/woman water was on the plant, i call it scorching, this acts like a magnifying glass under sunlight, and sitting above the palm of your hand move the magnifying glass closer until the sunlight starts to get smaller and when it gets to a small bright dot on your hand it will start to burn, in this case the heat from the lamp is slowly cooking the leaf ,it is either that or the leaf touched or got too close to the lamp, if the plant had any health problems it wouldnt just be on one leaf and other plants would break out with the problem too at the same time or within hours. at least that is my opinion.

100% not mag deficiency as i use sensi cal mg!!! i did spray my plants with neem oil, washing up liquid and water, then the next day i went in and sprayed the excess soap off, but surely that would affect others also and not just that one!!!! i am cursing myself because i promised my next grow wouldnt have any problems!"!"!!!!!!! GRRRRRRRRRRRRRRRRRRRRRRRRR

YES YES YES YES YES I FIGURED IT OUT!!!!!! IT WAS A TOUCH OF HEAT STRESS!!!! DAMN THIS STRAIN IS SO TEMPERAMENTAL!!!!!!!!!!!!!

LINK GUYS, TOP PIC. SOMEONE TELL ME IVE NAILED IT PLEASE! http://www.marijuana-seeds.net/Thanks-ThankYou.htm

ste, it didnt come off the top of the plant did it?

yes it did, thats where the all of them are like that.. why?

cause if its heat stress it will stress at the top first (or only) cause thats what is closest to the heat.

yeah but ive had other strains alot closer to the light in the past with few problems. the tops was about 14 inches away from a 600w light

yeah, i personally dont think thats your problem. i would chalk it up to a simple ph issue and go on about your business. if it spreads then do a major flush. my opinion.