unknown leaf problems ]=

[BlackWidow]

Hi everyone
i am using a 250whps
the temp is about 26
i have vantilation + fun in my closet
ph is about right as well
used some veg nuts 6+2+4
what could it be? i am about tho flower them (the pics are old they are bigger now but the same problem)

help will be greatly appriciated

 

[MTF-Sandman]

Is that coco?
What are the PH and PPMs?
Is 26c the temp at the canopy or just in the grow area?

 

[BlackWidow]

that coco? you mean the soil? its a soil i got from a flower store its the only one that was open when i really needed to transplant so i got it and the plants were very healthy in it untill this problem came out i dont think that the soil is the problem ...it had no perlite in it only small sponges so i added some perlite u cant see it tough its beneath the first layer.
i cheked the ph in some tap water i used and it was about 6.5 but now i use mostly rain water.
the temp is about 26 in the grow closet man

 

[smokeymacpot]

looks like too much heat to me.

 

[Verite]

What are you using to check ph? Also did you mix some perlite into the premix soil to better airate it?

 

[BlackWidow]

i used some pill inserted it to the water and every color has a number
it somthing that pool owners use lol

but really
roughly what does it seems like ?
theirs the yellow shit
and the curvs...

my guesses are that the yellow is oxygen or mag ?
and the curvs i really dont know ...maybe heat? altough its 25-27 degrees in their?

and yeah i mixed some perlite
and this soil also has small sponges i really dont think the soil is the problem cuz they were very healthy in that soil a couple of weeks ago

 

[smokeymacpot]

well the curling inwards looks to be heat. i had the same when i had my cfl's too close to the plant. put your hand where the canopy is and feel how hot it is as ambient cab temp is not related to canopy temp.

yellow could be bad ph or a deff.

 

[Verite]

... i used some pill inserted it to the water and every color has a number
it somthing that pool owners use lol ...

I dont think this is going to be accurate enough for getting a decent idea what your ph level is. Most of those cheapie kits wont tell you the difference between 5.8 and 6.3 and most MJ needs that kind of adjustment to get the feeding right. Up can pick up a Hanna checker1 for $23 and shipping.

 

[BlackWidow]

I dont think this is going to be accurate enough for getting a decent idea what your ph level is. Most of those cheapie kits wont tell you the difference between 5.8 and 6.3 and most MJ needs that kind of adjustment to get the feeding right. Up can pick up a Hanna checker1 for $23 and shipping.

if i am using rain water ill have to chek ph ?
if so ill look up some ph monitor...

*is it ok to add some hydrogen peroxide to my water?
*can i spray the leaves with some water? or will it burn them with the lamp?
*how do i apply epsom salt and how much? , if i am using it for all of my plants will it harm the ones with no mag difficulties?

 

[Verite]

At the minimum you need to get a better idea what your ph is. Who knows what kind of stuff you got in the air and that determines rainwater ph. Then theres ferted water ph and that you need to get into proper feeding range because almost all ferts drop ph.

Not sure why you want to add hydrogen peroxide to your water but would not recommend it. You dont need to spray the leaves with anything either. Dont use epsom salts. Use the right ferts and tapwater along with a decent ph meter and you wont have mag problems. Mag problems and epsom is the most overdiagnosed spew to come along since the psychosomatic buzz of dried banana peels.

 

[BlackWidow]

ok so i started flowering two days ago and i quite the veg fert
should i use the flowering fert (4-3-5 npk) right away?
ty

 

[Verite]

You still need to use some of the veg fert in the begining of flower. First week or two you want something like a 2/3 veg to 1/3flower then the next week or two use a 1/3 veg to 2/3 flower mix. Otherwise you'll end up with an N starved plant that goes all yellow a few weeks into 12/12.

 

[BlackWidow]

ok i will do that thanks a lot man

 

[sproutco]

should i use the flowering fert (4-3-5 npk) right away?
ty

Sure you can do that. If your 4-3-5 is a liquid, try 2 teaspoons (10ml) per gallon (3.8L) of water. Your leaves will not fall off if you do this now. LOL.