leaves changed overnite

[tee44]

6 weeks into flower plants doing great ,(tent grow,5 gallon pots, leds,ideal conditions) lights off plants look good ,lights on next day all 3 plants leaves are cured upwards and are yellowish, silverish, mostly on the top third of each plant... all within 12 hours..freakn strange ... buds and plant look fine though.. help!!!any ideas?

 

[p604]

got any picture???

 

[GigaGrew]

sounds like toxicity.

we need more details pls, check out the 'how to ask for grow support' link. its in my sig for convenience =)

 

[WizHigh]

Did you just feed your plants the night before? If so it sounds like it could be nute burn. Meaning you over fertilized the plants. Pictures will help alot.