Please please help sos mayday mayday!!!

F

fredflintstoner

Member
Hey guys,

my setup is this,
6ft by 6ft room
600w HPS light ....60cm from plant tops
10 plants in trays underneath in soil medium, high nute value, ph 6.5 - 7.0
Nutes, organic 8-7-0 being watered with daily
seeds unknown but assuming they are indicas due to wide leaves. They are two and a half weeks old and already 5 inches in length, very bushy.
They have had no dark periods and been under 24hr light so far....

BUT

The leaves on two plants are curling up and down and some leaves have even folded colpletely and drying,
PH is fine, watered once a day, but not sure whether light is too close or pottasium too low??
is 24hr light wrong?

hope you can help guys
:o

thanks
FRED
 
RyanTheRhino

RyanTheRhino

Well-Known Member
post a pic but i sounds like either fert burn or heat stress... do you have a fan blowing when the lights are on
 
F

fredflintstoner

Member
RyanTheRhino said:
post a pic but i sounds like either fert burn or heat stress... do you have a fan blowing when the lights are on
Click to expand...
sup rhino,

ye they have a fan blowing on them constantly, oscillating. Not too strong.

i was told i couldnt overfertilise with organic nutes?... and also, i have to add the nutes to tap water to lower the PH from 8.0 down to neutral...

could the light be too close?
its a powerful lamp....

(thanks for replying btw)
 
Sure Shot

Sure Shot

Well-Known Member
You don't want your Ph neutral!
You want it slightly acidic.
6.3-6.8 is recommended for soil.
I would say shoot for 6.5 and if your close, your good.
You are watering toooo often.
Only water when your pots start feeling light.
Only give nutes sparingly and maybe once a week during veg.
Although you could probably get away with no nutes at all for most of the veg cycle (depending on soil).
I would give the girls a rest as well.

My recommendation is this,
Start an 18/6 schedule
Keep Ph close to 6.5
Water only when pots are light but not bone-dry. (Practice)
Don't give alot of nutes(no more for about a week). Light is the food
Patience is key.(You'll have to wait for improvement to show)
 
Mattplusness

Mattplusness

Well-Known Member
im thinking since you mentioned they are showing signs of heat stress, and drying up, that they are being underwatered which makes them more susceptible to heat stress, so try watering a bit more
 
F

fredflintstoner

Member
Sure Shot said:
You don't want your Ph neutral!
You want it slightly acidic.
6.3-6.8 is recommended for soil.
I would say shoot for 6.5 and if your close, your good.
You are watering toooo often.
Only water when your pots start feeling light.
Only give nutes sparingly and maybe once a week during veg.
Although you could probably get away with no nutes at all for most of the veg cycle (depending on soil).
I would give the girls a rest as well.

My recommendation is this,
Start an 18/6 schedule
Keep Ph close to 6.5
Water only when pots are light but not bone-dry. (Practice)
Don't give alot of nutes(no more for about a week). Light is the food
Patience is key.(You'll have to wait for improvement to show)
Click to expand...

sup sureshot,

im definitely gonna start the 18/6 intervals

how can i get the tap water down from 8.0 without adding nutes?
(dum question maybe but its my first time)

WILL POST PIC ASAP!
 
Sure Shot

Sure Shot

Well-Known Member
fredflintstoner said:
sup sureshot,

im definitely gonna start the 18/6 intervals

how can i get the tap water down from 8.0 without adding nutes?
(dum question maybe but its my first time)

WILL POST PIC ASAP!
Click to expand...
I use a product called Ph Down.
It's an acid base and lowers Ph(It takes a very small amount for big changes).
You can find it at any Hydro store.

Also you could just add some R/O water to your tap water untill Ph levels get into range.
 
Sure Shot

Sure Shot

Well-Known Member
It looks to me like your leaves are actually twisting.
This is a sign of a nute def. BUT, when Ph levels are at 7.0 there is a "nute lockout".
Which means that the roots cannot absorb the nutes even if they are there!
 
F

fredflintstoner

Member
Sure Shot said:
It looks to me like your leaves are actually twisting.
This is a sign of a nute def. BUT, when Ph levels are at 7.0 there is a "nute lockout".
Which means that the roots cannot absorb the nutes even if they are there!
Click to expand...
OK,
thanks for help
what is the RO water? cos thers no hydro stores where i live
 
helpmegrow

helpmegrow

Member
fredflintstoner said:
Hey guys,

my setup is this,
6ft by 6ft room
600w HPS light ....60cm from plant tops
10 plants in trays underneath in soil medium, high nute value, ph 6.5 - 7.0
Nutes, organic 8-7-0 being watered with daily
seeds unknown but assuming they are indicas due to wide leaves. They are two and a half weeks old and already 5 inches in length, very bushy.
They have had no dark periods and been under 24hr light so far....

BUT

The leaves on two plants are curling up and down and some leaves have even folded colpletely and drying,
PH is fine, watered once a day, but not sure whether light is too close or pottasium too low??
is 24hr light wrong?

hope you can help guys
:o

thanks
FRED
Click to expand...
Your diffidently looking at a burn or a over use of nutes or under watering or something similar? http://www.icmag.com/ic/showthread.php?t=11688 <-- all the plant problems you need fixed go there :D
 
F

fredflintstoner

Member
fredflintstoner said:
OK,
thanks for help guys,

what is the RO water? cos thers no hydro stores where i live.

the PH in the soil is slightly lower than 7 but the water is 7.....u dont think the light is giving them heat stress then? cos this has happened gradually since i inserted HPS 600w and two plants have got worse...the others are slowly following
Click to expand...
 
Sure Shot

Sure Shot

Well-Known Member
Reverse Osmosis water.
Do you have any water dispensaries in your area?
Usually 1.25 for 5 gallons around here.
These usually are R/O water.
 
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