First grow:4wks and yellowing leaves :( please guide me

Broker,

If that is 1ft by 1ft then your problem may verywell be heat stress or other overlighting issues. You really only need 35 watts per sqft. If it is 1by1 and im not wrong ("use a 600w light in my 1x1 tent plant setup"), then you would probably be fine with a 100 watt buld, which they make in HPS and MH. You can get a buld/ballast fixture for $50 at lowes and its perfect for small grows spaces. Sorry if im wrong about your room size, because it does seems like your speaking about multiple plants.

Hi canna, I do have a one by one but no sign of heat stress and keep the bulb just above 20 inches, i am on my way to my local store now to test the nitrogen with some guano. But nevertheless, it could still be an option .. I will ask in store now. Thanks for your advice

Hi guys, just a quick update.I have been to my local store and have bought the bat guano and perlite. Unfortunately the only guano they had was 4 parts n to 10 p and wasn't Mexican, but I suppose it will hopefully still do the job with the nitrogen intake so spread 3 table spoons of the powdered guano and a couple of hand fulls of perlite into the top and mixed it in as best i could... It looks good for bat poo! I can see that the plants are obviously not yet drained from yesterday's mistake flush... But let's see if this bring the yellowing downvand get some nice lush new green coming through when would you guys suggest that I give a small drizzle of canna a and b nutes to my babies? I known from charts above 5.8 is best ph... But when should I do my next feed? Your humble apprentice. Joe

I just had this problem and it cost me a month of veg time. I was using kellogg's garden soil (which has always worked well for me) with house and garden nutes. I had terrible ph problems this time and tried flushing and many other remedies to no avail. I could not fix the ph of the kellogg's soil so I decided to re-pot with roots organics soil (on dec 23) and it literally saved my garden. It contains organic nutes so I only use ph'd water (6.3-6.5) with drip clean and roots excel and every yellow, stunted plant is now deep green and healthy. Your last post says your ph is 5.8- that's for hydro. Optimum soil ph is 6.3-6.5. The pics of your plants look very similar to what my plants looked like and personally I think you have a lockout issue from bad ph. Your soil may have proper nutrient levels but the plants can't absorb them at that ph. If you add more a-b or bat guano, you could go from nutrient lockout to nutrient burn once the ph gets corrected. That's also part of the reason I repotted in the roots organics, I realized I may have ruined the soil even further trying to fix it.

Hi redbird and thanks for your post. I hope the issue gets resolved now, although I havnt re potted I just mixed the guano and perlite in best I could without damaging the plants roots. I am not using soil though, I am using coco noir which has no nutrients inside of it, unlike soil.... This is why I was suggested that canna coco a and b would suffice. Also, if you look maybe 1 or 2 pages back in the thread you will see a few great graphs that flo kindly sent to me that shows the exact intake on all levels of ph in all mediums and it suggests that 5.8 exactly is the best intake for coco, at 6 it he's 2 main nutrients that seem to lock out. I will hope to see some green within the next couple of days,just waiting for the babies to dry before I drizzle nute them

Redbird1223 said:

I just had this problem and it cost me a month of veg time. I was using kellogg's garden soil (which has always worked well for me) with house and garden nutes. I had terrible ph problems this time and tried flushing and many other remedies to no avail. I could not fix the ph of the kellogg's soil so I decided to re-pot with roots organics soil (on dec 23) and it literally saved my garden. It contains organic nutes so I only use ph'd water (6.3-6.5) with drip clean and roots excel and every yellow, stunted plant is now deep green and healthy. Your last post says your ph is 5.8- that's for hydro. Optimum soil ph is 6.3-6.5. The pics of your plants look very similar to what my plants looked like and personally I think you have a lockout issue from bad ph. Your soil may have proper nutrient levels but the plants can't absorb them at that ph. If you add more a-b or bat guano, you could go from nutrient lockout to nutrient burn once the ph gets corrected. That's also part of the reason I repotted in the roots organics, I realized I may have ruined the soil even further trying to fix it.

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At last some sense , good on ya

Brokerj said:

Hi redbird and thanks for your post. I hope the issue gets resolved now, although I havnt re potted I just mixed the guano and perlite in best I could without damaging the plants roots. I am not using soil though, I am using coco noir which has no nutrients inside of it, unlike soil.... This is why I was suggested that canna coco a and b would suffice. Also, if you look maybe 1 or 2 pages back in the thread you will see a few great graphs that flo kindly sent to me that shows the exact intake on all levels of ph in all mediums and it suggests that 5.8 exactly is the best intake for coco, at 6 it he's 2 main nutrients that seem to lock out. I will hope to see some green within the next couple of days,just waiting for the babies to dry before I drizzle nute them

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You have not cured the problem fgs , god im screaming here , mate , wish washing the perlite on top of the soil will achieve nothing , the guano will soak in , im getting a headache

Im gonna say this once more and it's just MO ok , you need to shake off the roots lightly , mix the perlite and guano into the existing soil , replant . dont water until it needs it , deffo wait a few days before nutes , ok im calm

Now you have confused me clonex... Yesterday you agreed with flo that my pot size was now to big to repot, I done everything you and flo told me to do yesterday... I might wait a couple of days to feed them again as suggested but i was specifically told by flo who uses the same products that this replanting from such a bog pot would cause more stress to the plant than it's worth

Brokerj said:

Now you have confused me clonex... Yesterday you agreed with flo that my pot size was now to big to repot, I done everything you and flo told me to do yesterday... I might wait a couple of days to feed them again as suggested but i was specifically told by flo who uses the same products that this replanting from such a bog pot would cause more stress to the plant than it's worth

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Well then you cant read , the only thing i have typed about pot size is are they 11litres , why cant you repot whatever the size , listen pal , you are costing yourself veg time not me , you will end up repotting that plant and freshening up the soil whatever happens , go your way and learn the hard way as i did ? shit i thought these sites were designed to help people like you , when i started growing there was no internet , just common sense , do you have any ? time to start showing it , what possible reason could i have for advising you wrongly and wasting my time , i have over 100 plants of my own to take care of.

Ok clonex, just so I am clear on what final step to take, do you disagree with flo and sensi when they say that repotting is something that should be done if after a couple of weeks the symptoms aren't better, and you suggest I do this now?

First I want say I have zero expirience with coco and i apologize, i did not realize you were using coco in my earlier post. But I know it is a soilless mix that can be used in both soil and hydro gardens. Hydro plants have a different type of root system than soil plants. So if you're using the coco with drip feed or something, I would think the plant made hydro roots and would want a 5.8 ph. But if you're hand watering every few days, it may think it's a soil plant and want closer to a 6.5 ph. Just my opinion. I went back and viewed the charts but I didn't see anything about coco specifically, only soil and hydro. I visited several websites and tried to research info on coco ph for you, but there is a lot of conflicting information, and I assume that's because there's more than one way to use coco as a medium. The best suggestion i saw, IMO, was to ph the water to 5.8 and make sure the runoff wasn't higher than 6.3. Again I have no experience with coco, only soil and dwc.

Perlite is used to reduce soil compaction and will be useless if it isn't mixed in thoroughly. Gently knock as much soil as possible from the root ball but leave at least a fist-sized clump. Put the knocked off soil in a 5 gal bucket and mix with perlite. 2 parts coco 1 part perlite. Replant and water with ph'd water only.

Yes i totally disagree , i understand they are trying to help you as i am , those 2 plants are locked , maybe the 3rd also , it does not need to be as complicated as they are making out , add nothing else to that soil , the guano added wont hurt , but no nutes for a week , perform the re-pot and dont water straight away until the soil lightens , the perlite will help air through the soil , after 3-4 days if you are careful with them , vigourous growth will start again , only then begin adding small amounts of your canna a+b, use a syringe to measure , remember , let your roots breath , its the most important thing in your whole grow , air flow is very underestimated , i am not here to argue with anyone , i to still learn new stuff everyday , the biggest problem with these sites is people get to complicated trying to help, remember they are just weeds , Good lighting, good medium , good airflow and regular controlled feeding are key...

I understand what flo and sensi are saying and they are correct, repotting can be stressful to plants. However I planted my clones on halloween and repotted 3x since. Once to loosen the crap soil I had by hand and repot in the same crap. A week later to add perlite to the crap soil. And again a week later I repotted in the roots organics and all three times it was like they didn't even notice, not droopy or anything. When you're in a corner, you gotta do what you gotta do just be gentle and they'll be ok

If you follow the other plan you stand to cause more damage ,
if you perform the re-pots you stand to maybe fix the issue and lose fuck all,
if re-pot fails you can revert to what the others are saying,
to me it makes no sense your not just doing it,
do you see?

Ok clonex,and thank you redbird form your extra help and going out of your way to find the best ph for coco really appreciated. Clonex, I will do it to the most severe plant right now, see how it goes for a while... If it works I will continue with the other. Can I ask you the nest exact way to do itmor shall I wait another day as the coco is still damp from yesterday ??

Best way I mean not nest, and your opinion aswell of the best way to gently take out of my 3 gallon pot when the coco is slightly damp ?

Its ok to just carry on , get a big piece of pvc sheeting etc ,press in all sides of the pot to release the soil form edge of pot, place the stem of the plant inbetween your fingers, lightly press down on the soil, in 1 movement and becareful flip the plant upside down , gently pull the pot away , some soil will drop depending on how strong the root system is , flip it back around and squeeze n shake lightly the root system as the soil falls away , ok put it down on the pvc and get mixing your soil and perlite , re-plant not to deep and mix up the soil fast as you can so the roots are not uncovered for too long , next time its an idea to start off in smaller pots and transplant up , good luck...

I try to take it out as one clump and break it up from the bottom, crumbling gently. I put the stem between my first and middle fingers, palm down on the dirt, pick it up and flip it upside down or as close as you can get and wiggle the pot off. Booya

I havnt got PVC sheeting, I will cover the floor and press the sides in.... Hold the stem and turn upside down very quickly... Shake it all off... Re pot with perlite and place the plant back into the coco medium with the roots dangling straight down?? Just to make sure I can do this right.