Plant hospital

if its not that, then its IRON like you siad add a vitamin pill to the water like a half or a fourth, this will clear it up, and it doesn't matter what brand vitamin pill, i use centrium.

What can you say about light green leaves with a yellow tip, and another leaf with a dar green tip, thin leaves?

well i really cant say much without a pic or better description, but with varying tip colors and burns, usually thats a sign of over fert.

The left leaf - dark green tip, right leaf - yellow tip. Leaves are kinda thin, the curling of sides isn't due to heat. It's not too dry. Maybe slight over watering, but idk. No nutes have been given, soil probably hasn't too much nutes, in fact I flushed it with boiling water before, because of gnats. (they're gone for good.) The plant was good yesterday. Look:
This is making me sad.

the lights may be too close, it just looks a little stressed, the soil might have some nutes cuz its looking a little over fert, but i think it will pull through just fine give it time, let soil get dry b4 you water

Thanks dude, I'm freaking out for a few hours now LOL
Can't wait to relieve stress with some bud, but i have made a promise to not buy this shit I can get where I live.

thats a good ways to go, good bud is expensive and depending on where you are hard to come by, and shwag isnt good enough to do the trick after a week, even if you never smoked in your life. just keep growing and ry to support your own, but worst case you see some good bud buy it, there all types of flavors out there, some you may never get to try again, i personally have had some rarity's in my life time and would love to get some more of the smoke but cant.

°I kinda think it's growing slow, look at that pic, it was day 8.
https://www.rollitup.org/attachments/marijuana-plant-problems/2147466d1335802501-plant-hospital-30042012267.jpg

looks like a big pot, plants will focus on roots before foliage. if the pot is big it will take a while before the top takes off but if its well established in a big pot it will take off for real

Hmm your posts give me hopes that I wont fuck this one up.
let's see.

hey guys.. could really use some help here. I have been having some problems with my timers lately (such as randomly turning on my lights at midnight while i'm asleep)

I came home to check on everything and found my plants looking like this.

currently 3 weeks into flowering
1000-1100 ppm (my tap water alone is between 60-100)
400W HPS
2x2 ebb & flow tray

too hot get some air moving in there and get a new timer

so that's def. not nute burn?

no, you need to lower temps.

Poly you are awesome. Thank you for all the help you give. I have a problem in my tent, it is in flower They are in a soiless mix. I dont know if it is nute burn or a deficincy? Like someone suggested, i think the first one is magnesium def? and the other two nute burn? How do I go about fixing this? Thank you for all your help.

looks like your using too much P and you got a burn befor the lockout, hmmm. tough fix about har far into flower are you? did it start at top or bottom of plant?

I am 4 weeks into flowering in a scrog.

yeah too much nute just back down raise the pH a little, wont be much recovering for the leaves they will probably get worse but as long as the new growth and buds are fresh and green you should be alright especially in a scrog where most of the growing parts of the plant get equal light.

so what should my ph be? Should I just water and no nutes for alittle bit?

around the same that you have been using, maybe up it .2-.3