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Leaves turning yellow, Please help!!

RobMar

Active Member
Can anyone tell me what is happening and how I can fix it. Thanks in advance

Aeroponics Grow

Humidity 40-50
Reservoir Temp 68
room temp 75-79
ph 5.8
ppms @1000
Use RO water


 

potsmokinbasturd

Active Member
raise the P.H to 6.5 . How often do you water ??? Up the fert a tad. see if there are any changes. This problem is a deficiency prob but I cant remember if u need more nitrogen or potassium . Its 1 or the other.
 

blueybong

Well-Known Member
The plants started as clones. They've been growing for almost a month. I'm using botanicare nutes. Bloom, cal mag, karma and sweet.
It looks like you may have a nitrogen deficiency.

Here's a link to Botanicare's Advanced Recipe Formulation Sheet:

http://www.americanagritech.com/product/product_detail.asp?id=15&pro_id_pk=38

Scroll down to the Prue Blend Pro section and it'll give you an idea of how much of each product you should be adding. Note: 5ml = 1 tsp or 15ml = 1 tbs per gallon.
Pick the correct stage of growth column towards the top of the page and you should be good to go.

Oh yea, if you need to increase your nutes, do so slowing over a week or so.

Good luck!!
 

RobMar

Active Member
raise the P.H to 6.5 . How often do you water ??? Up the fert a tad. see if there are any changes. This problem is a deficiency prob but I cant remember if u need more nitrogen or potassium . Its 1 or the other.
I'm watering every 5 min for 1 min. Thanks for your help.
 

SmokeyMcPopkinZ

Active Member
dude its probably a lockout of some sort i would try raising your ph a little it looks like a early stage of sulpher diff or a simple nitrogen diff caused by lockout don't raise ferts just yet because if it is lockout youll be maing things worse is the plants stem purple at all?
 

RobMar

Active Member
dude its probably a lockout of some sort i would try raising your ph a little it looks like a early stage of sulpher diff or a simple nitrogen diff caused by lockout don't raise ferts just yet because if it is lockout youll be maing things worse is the plants stem purple at all?
not really purple but dark in some spots. Raise the ph huh? thanks I'll try that
 

morrisgreenberg

Well-Known Member
hey rob mind if i chime in? you listed your nutrient strenght but not the brand, if its a basic one part or any top shelf brand, it is highly recomended that when using RO water or any tap water with less than 100ppm outa the tap you should add atleast 5ml/gal of cal/mag supplement...this is good in 2 ways, first this will replace the minerals that the RO washed out and second, it adds a little extra nitrogen...all cal/mag products have a 2-0-0 npk with calcium, magnesium and iron...with the RO water the standard cal/mag in your veg formula will not be enough. your PH is just fine 5.5 and let it ride up to 6.0 and these specific minerals will be available
 

blueybong

Well-Known Member
hey BlueyBong, have i seen you on IC?
Yep! Mist & ET were really helpful in educating me on the multi-flow E&G. I've completed the controller box and I'm using it as a recirculating DWC for the balance of this grow(Sorry Rob for hi-jacking your thread)

By the way, Rob's using Botanicare Bloom, Cal-Mag & Sweet.


 

SmokeyMcPopkinZ

Active Member
hey rob mind if i chime in? you listed your nutrient strenght but not the brand, if its a basic one part or any top shelf brand, it is highly recomended that when using RO water or any tap water with less than 100ppm outa the tap you should add atleast 5ml/gal of cal/mag supplement...this is good in 2 ways, first this will replace the minerals that the RO washed out and second, it adds a little extra nitrogen...all cal/mag products have a 2-0-0 npk with calcium, magnesium and iron...with the RO water the standard cal/mag in your veg formula will not be enough. your PH is just fine 5.5 and let it ride up to 6.0 and these specific minerals will be available

this sounds pretty legit by RO do you mean run off?lol
 

RobMar

Active Member
hey rob mind if i chime in? you listed your nutrient strenght but not the brand, if its a basic one part or any top shelf brand, it is highly recomended that when using RO water or any tap water with less than 100ppm outa the tap you should add atleast 5ml/gal of cal/mag supplement...this is good in 2 ways, first this will replace the minerals that the RO washed out and second, it adds a little extra nitrogen...all cal/mag products have a 2-0-0 npk with calcium, magnesium and iron...with the RO water the standard cal/mag in your veg formula will not be enough. your PH is just fine 5.5 and let it ride up to 6.0 and these specific minerals will be available
Thanks for the info but I did list all that in the first post. I'm using botanicare nutes. I also use ro water. I adjusted my ppms up to 1000.

Here's the formula I'm using for budding

540 ml botanicare pro bloom
180 ml liquid karma
150 ml sweet
126 ml cal mag

I mix this with 1 gallon of water and mix in the reservoir until ppms are reached. I have a 20 gallon reservoir.
 

weedpot

Active Member
hey bud i had the same prob only last week, some 1 gave me the plants because they didnt have the right stuff, (1) first thing make sure your pot is big enough for the plant if its to small the plant cant spread its roots any more and the leaves start to go like that as it cant get enough food for its self.(2) the light, if there is not enough it can only grow to a certan size then it will start to die so make sure you have enough light (3) the nutes, what iv done is mix it weak and then spray on to the plants leaves as well as giving it to its roots.....

Now it might be some thing else, This has turned my plants around with in a week i hope its of some help to you. i also know that a lots of plants go a bit yellow at the few weeks then (grow out of it) and again after they flower
 

morrisgreenberg

Well-Known Member
ok heres another since you are using bloom, when did you start using bloom nutes? im so sorry if i didnt catch all this before, the reason i ask is many people start using bloom nutes as soon as they flip the lights to 12/12, technically we are not flowering until we see bud sites forming, perhaps 2-3 weeks into this light cycle, up until seeing these budsites Veg nutes should be used since the plant is relying heavily on the extra nitrogen in Veg formula, starting with bloom nutes too soon will cause premature yellowing....the kind of yellowing we would like to see at 5-6 weeks in on an 8 week strain
 

RobMar

Active Member
ok heres another since you are using bloom, when did you start using bloom nutes? im so sorry if i didnt catch all this before, the reason i ask is many people start using bloom nutes as soon as they flip the lights to 12/12, technically we are not flowering until we see bud sites forming, perhaps 2-3 weeks into this light cycle, up until seeing these budsites Veg nutes should be used since the plant is relying heavily on the extra nitrogen in Veg formula, starting with bloom nutes too soon will cause premature yellowing....the kind of yellowing we would like to see at 5-6 weeks in on an 8 week strain
Yep thats my problem then. I switched the nutes the same time that I switched the light. I'll remember that for my next run. Thanks for the info bro. Much appreciated.
 
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