my plants got problems please any help

[HYDRO.P]

hi, ive been looking around for awhile and most of my problems i have solved just by reading but can some one help with this one?

E-indoor
E-pro mix


SCLR-6.4
E- r/o water
E-Source water pH

E-30 days into harvest+2 weeks veg
E- DNF 1 every 2nd watering
E-E-1000 hps
E-Air temperature bout 80

E-Lighting schedule 12/12

HYDRO.P Reviewed by HYDRO.P on 03-02-2009. my plants got problems please any help hi, ive been looking around for awhile and most of my problems i have solved just by reading but can some one help with this one? E-indoor E-pro mix SCLR-6.4 E- r/o water E-Source water pH Rating: 5

[denialisback]

hi, ive been looking around for awhile and most of my problems i have solved just by reading but can some one help with this one?

E-indoor
E-pro mix


SCLR-6.4
E- r/o water
E-Source water pH

E-30 days into harvest+2 weeks veg
E- DNF 1 every 2nd watering
E-E-1000 hps
E-Air temperature bout 80

E-Lighting schedule 12/12

Whislt flowering this happened to me, I had a very alkaline PH so I had to balance it, then I discovered I was adding too much nutes and stressing my plants (biobizz allmix), turned out to be a combination of the HID HPS lamps temperature and/or closeness to the plants whilst nuting, which seemed a bit bizarre, this only happened on 12/12 , now I'm using CFL with the same mix and everythings fine.. I'd nute every 2 waterings to see if its that + heat.. if it isnt, i'd then try flushing out.

Peace,
Denial

[mickeybuddaboy]

Damn thts nute burn alright

[fasts102376]

hello i just went through that myself (nute burn) like mike said cut way back on ur nute's, i went 1/4 strength and i was fine.. good luck

[Rusty Trichome]

Looking at the surrounding leaves...it doean't look to me like overnute. Is this starting at the bottom and moving-up the plant? Overnute will start showing on virtually all of the leaf-edges, and get worse without correction. Heat stress usually starts at the top, and works it way down.
Possible rootbound...?

To me, it looks more like overwatering or root rot What do the roots look like, and what is your watering schedule? Are you letting the soil dry between waterings?

-or-

Are you spraying or pouring something on the lower leaves?

[the image reaper]

I agree ... that looks like damage from over-watering, possibly rootbound, and a calcium deficiency ... either stop using reverse-osmosis water, or immediately start adding Cal-Mag+, your plant needs the minerals the RO has stripped from it ... use about 10ml/gallon with the RO, or 5mg with typical water ... good luck :smokin:

[HYDRO.P]

i dont think its nute burn, jus cause im useing the dnf at less than half strength, a couple of people i know said it could be air quality, i have just doubled up on half the pots so i will see if mabye it is root bound, i am watering almost every day of every second day but i do wait untill the pots are pretty dry. thanks for the feedback i appreciate it,

it really starts in the middle of the plant, really wierd that some of the very bottom fan leavs are still ok but halfway up da plant it looks terrible

[Weedhound]

Doesn't look like nuteburn to me either on the largest oldest leaves. I agree with Reaper and Rusty. Add some Cal Mag and check for rootboundness (roots coming out the bottom of your pot).

[HYDRO.P]

there is roots coming out of da bottom hole in the centre on most of them, and they are starting to look a little shitty (the bit of roots comming out), could that be it???

[Rusty Trichome]

Would carefully transplant, and get back to us in a week or two. :thumbsup:

Also, make sure she needs water, before watering her. Cannabis needs to go through a wet/dry cycle. (thanks for the phrasing, IR) Sometimes weather extremes (high humidity, low temps, stronger fans, and on, and on...) can affect rate of soil moisture drop, so watering on a schedule get's screwed-up...and you end-uip watering too often. Personally...I would adjust the ammount of ph'd water you add between nutrient days, to try and keep on a regular schedule.

Why the reverse osmosis water?