strange symptom

[wonderful]

hey guys im in my second week of flower and i have some strange things happening to my leaves that looks like nothing ive ever seen. this is an organic grow. wat do you think? thanks!|

 

[SeaMaiden]

Looks like light burn/bleaching to me. You might want to back off the N a bit, too.

 

[wonderful]

this happens mostly to the leaves a little further up than the middle, and none at not at the parts closest to the lights. thx for the nitrogen tip, have been giving casting tea weekly and have a hard time spotting nitrogen toxicity, only my second run organics

 

[wonderful]

we even had slight problems with a milder version of this from almost the get go about 2 weeks in id say under only a 400 mh and 90 w ufo
some strains show no signs, but those strains were started 3 weeks later

 

[Kcar]

The damage may have happened weeks ago, and only now showed up.

 

[the gnome]

I agree with sm,
thats exactly what my bogglegum looked like when it got too close to the bulb last week
are you foliar feeding?
when fertz water gets dripped on leaves,
they sometimes look like that too.

 

[wonderful]

um they only got foilar fed once i think and this problem keeps persisting. the only fertz they got to date was casting tea
heres some pics from today. exactly 21 days in flower today
it is recently occurring on bottom leaves

 

[SeaMaiden]

In my experience the lights don't have to be close, they only need to be sufficiently intense for this to happen. Once I figured it out I haven't had it happen again. The one leaf looks like it's possibly an early sign of P-, but not 100%.

You're using an LED array...? I know of many people who have burned their corals using LED lighting (light burn, not physically heat burn, the corals are under water). Not saying 100% this is your problem, but the affected areas don't resemble any deficiency I'm familiar with, and I've tried to have them all. They still look just like my first experience with light burn not associated with heat, which occurred when I put my 600W HPS on a *mover*. The plants had been sitting under a stationary light for several weeks, and when I put it on a mover some of them began to bleach in weird places.

EXACT SAME LIGHT, only change, the ONLY change, was putting it on a mover.

Let's see if I can find some pix.... this was years ago, so I may no longer have them. Aye, got 'em, tell me this doesn't look almost identical.

 

[wonderful]

yes that does look pretty much the same. thanks for the pictures. i have 2 400 watt hps lights (one just got replaced with 400 watt cmh last week) and one 90 watt ufo ill raise the ufo and decide where to go from there, its at about 8 inches from cannopy which i have researched to be the most intense for for that light.