Hi

The plants are just over a week in to flower in nft under a 600hps
ph has been stable 5.8 or so, ec was 1.1
changed the tanks a few days ago and bumbed up to 1.2,
The next day it was up to 1.3 so i have now diluted down to 1.0
Is this over feed?
Its spreading fast and curling and crisping all the leaves.
This is my first attempt after a few years break and i never had these troubles, I think i'm doing the same as i always do!
Please help

i'm having the same kinda problem but i think mine worse than yours & i'm 6 weeks into flowering.

have u got good ventilation, air exchange & are your temps ok.

or it could be that lsf but dont take my word i'm sure some 1 on here will ID it.

Yeah its in a tent, with rvk125 so fine, I changed to flower nutes last night as i think it may be nitrogen toxitity, who knows though!
Never had lsf before but i hope not! any one else out there know?

hmmm.... hate to say it but it looks like LSF... seems to be real common these days...

id say yes ,

Haha mixed views as always, well the ec has been stable at 1.1 for two days so thats a good sign on the nutes side

I have just got some "fungus clear" contains "myclobutsinil", and it states ok to use on flowering plants. I have to wait untill lights on to spray to avoid interrupting the dark cycle, But that does mean that they will miss out on a couple of hours light this evening so i dont fry the leaves with the light. I'm guessing that will be ok though.

We shall see....

your leaves don't really look like its to do with the nutrient, i've had no end of trouble and they don't end up like that

i've not had LSF so can't comment on that, tho from the pics on here it looks likely

i don't feel its the same problem RUBIX has got, anyone else know for def?

i agree that it doesn't look like its to do with nutrients.,

could be lsf or some sort like that......