Sick plant possibly nitrogen toxicity?

This is Strawberry Cough under flourecents, in Fox Farms soil with added perlite, Ph- 6.8, FF Grow Big fertilizer in distilled water.

Take a look at the pics and tell me what you think is wrong.
Thank you

overnute....mos def. they don't appear to be big enough to require extra nutes for another minute or two. flush a couple of times over a few days.

Definately over ferted...flush em good a few times then resume feeding...at 1/2 strength,to start with ,they`ll be fine.
canadiancowboy

I know this thread is long dead but to anyone who reads this in the future, thats not overnuting. Its pH being too high or low. read around some before you jump to conclusions, this symptom is often stated as over nute when in reality it is pH being off; nuff said....

Guest999 said:

I know this thread is long dead but to anyone who reads this in the future, thats not overnuting. Its pH being too high or low. read around some before you jump to conclusions, this symptom is often stated as over nute when in reality it is pH being off; nuff said....

Click to expand...

I'd say you're both right... ph lockout caused only N to get absorbed which then caused an N over fert

could be ph , could be to much of one element that has caused a lockout of another.looks like an iron deffiecency to me tho.although u can see alittle of the leaf tips burned.

Dark green leaves + Nutrient burn = over Nute.

those plants got stolen and never finished anyway