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Three week old Critical autos "CLAWING" Pls view pics Help!


bongwater923
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One out of three of my Critical Rapido autos started severely clawing overnight and is getting worse. Now there is discoloring on the curled leaves. (green area getting splotchy with yellow). I just fed them 1/4 strength nutes at the end of their third week for the first time using AN connoseur and bud candy. Also changed lights to 12/12 for no other reason than to take it easy on the electric bill. They get 1/2 tap and 1/2 RO water ph to 6 (best I can tell with the dye drops method of testing) I am growing in 100% coco in three gallon airpots under 400wt HPS. Please, oh please take a look and help her with some advise for this old hippie growing in coco for the first time. Much love in advance for your help! Peace...bongwater.

Sorry, pics aren't better.

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Hello my friend :)

I can think of a few things that could help you, our resident moderator is having connection problems so I will do what I can in his stead, lol ;)

I use advanced stuff a lot of the time and I can say that your girls don't really need bud candy until the flowers start to appear :) I use bud candy (when I can afford it, lol) and you should only ever put in a 2-1 ratio of base nutrients and additives

Eg. 100ml of base nutrients to 50ml of bud candy. When the buds start to grow of course :)

Your 1/4 strength nutes are at which EC? If you follow the instructions on the back the EC is way too much! I don't know who does Advanced Ns calculations but you really need to use an EC meter and just go by that.

What I will also say is that I have used coco for most of my grows and it works really well if you mix some perlite into it, about a 70/30 or a 60/40 ratio :) It really improves drainage and general air to the rootzone. It makes it impossible to overfeed them :)

I can imagine your stressed at this point but fear not your ladies should bounce back if you give them a good flush, go with a solution of 0.4EC (however much nutes it takes, which shouldn't be much) and then let her pot get light before you feed again :)

Again, I must stress don't read the label on the nutrient bottle, just go by an EC reading....

1/4 strength - 0.4EC

1/2 strength - 0.9EC

Full strength - 1.8Ec

...again when adding bud candy, big bud etc use the 2-1 ratio between base and additives :)

Hope any of this helps :) Sorry if I haven't, lol ;)

Gonzo :)

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i agree with gonzo i think you should lok on the side of the nutes, it is probably a mix that was a little too strong, i never used AN but a lot of people say that it is some strong nute so seeing the size of your lady it sounds like the most logical ^^

good luck man hope you' ill solve that ;)

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i agree with gonzo i think you should lok on the side of the nutes, it is probably a mix that was a little too strong, i never used AN but a lot of people say that it is some strong nute so seeing the size of your lady it sounds like the most logical ^^

good luck man hope you' ill solve that ;)

Thanks for the quick replyDust and Gonzo!

I hand water daily. A little over a ltr per plant so I get some run-off. The plant tops are 23 inches from the light.There is plenty of ventilation and air movement. Regrettably, the only way I have to measure PH is the kit where you add drops of dye to the sample and compare it to different shades of amber. Not very precise but my tap runs around 8. That's why I add RO to the tap water and still have to PH down. I have never added any cal-mag as they showed no signs of distress until this. Today I added 1 tspn of epsom salt per gallon as I feared that I possibly I had a deficiency. Temps run 80-87 degrees, RH 40-50% I am flushing plants with straight RO water. Should I add anything at all?

Thanks and much love for your help bro! peace...bongwater

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1 liter per plant everyday is a little too much at this age i think, it's in coco? it can work on little older girls that drink a lot but at this age i don't think you really need it. same for the runoff as long as you don't overfeed it is not necessary to have runoff every watering, it's more a security ^^

when you give her the water does she look thirsty already? and is the medium completely dry or little humid or full of water haha ;)

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Thanks Dust! I believe that you are exactly right. A rookie mistake on my part. Having never grown in coco before, I thought I needed to feed every day, so I apparently overwatered and over fed. I increased the nutes to early. I gave them a good flush last night and kept them in low light overnight. I flushed with PH'd RO water with nothing in it. After the pot gets light and I water again, how often should I feed them while they are in their 4th week of life. I use 1/2 tap water and 1/2 RO water, do you think I should be adding Cal-Mag or epsom salt?

I appreciate your help, you guys are great support. peace...bongwater

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1 liter per plant everyday is a little too much at this age i think, it's in coco? it can work on little older girls that drink a lot but at this age i don't think you really need it. same for the runoff as long as you don't overfeed it is not necessary to have runoff every watering, it's more a security ^^

when you give her the water does she look thirsty already? and is the medium completely dry or little humid or full of water haha ;)

It is in coco. Somewhere I read that 20% run off was optimum. I think I read too much! She never appeared very thirsty as the coco was always damp. I had what turned out to be an incorrect perception that I needed to feed daily because the coco has no nutrients. This was indeed a learning experience in coco growing and I appreciate yours and Gonzos guidance! I will send pics after they perk up. Any advise on feeding from 4th week would be appreciated. peace...bongwater

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It is in coco. Somewhere I read that 20% run off was optimum. I think I read too much! She never appeared very thirsty as the coco was always damp. I had what turned out to be an incorrect perception that I needed to feed daily because the coco has no nutrients. This was indeed a learning experience in coco growing and I appreciate yours and Gonzos guidance! I will send pics after they perk up. Any advise on feeding from 4th week would be appreciated. peace...bongwater

They say that coco has no ability to lock in the nutrients (which is true) but i just feed then let dry out and then feed again :) Coco has the laziness of soil and the yields of hydro ;) This is why i use it, lol :) I thought in the start of my adventure that i had to feed the rootzone daily but its not much different to soil in the way that you can have a wet/dry cycle. The coco does not like to be dried RIGHT out for pH issues that occur but if your using Advanced pH perfect stuff it wont be a problem for you :)

Just feed then let the pot get real light before feeding again :) = Happy girls

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Thanks Bro! Great info. This has been a leaning experience for sure. I am having some difficulty with the PH perfect feature of the AN. After I add small amounts (1mlA&1mlB) to 3 ltrs of tap water, the PH is still around 7.2! Does it take a particular concentration of the PH perfect nutes in order for it to properly PH the mixture to the desired 5.8-6? peace...bongwater

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I don't think it matters at all :) Im sure I read somewhere that it doesn't necessarily set the pH to a certain range it only makes the nutrients available at your particular pH :)

Im sure if it comes out the tap at 7.2 then it will remain at 7.2 always :) (other things will make it fluctuate but still won't matter ;)) The pH perfect just makes all nutrients available at 7.2 :) Things that wouldn't normally be taken up at that pH range will now be taken by the roots (through the process of charged ions or something crazily scientific, lol)

I think I have explained but im totally baked as im smoking some cheese, lemon haze and amnesia haze combos, lol ;) Im quite ripped ;)

Hope any of this drivel is helpful, lol :)

Gonzo :)

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I don't think it matters at all smile.png Im sure I read somewhere that it doesn't necessarily set the pH to a certain range it only makes the nutrients available at your particular pH smile.png

Im sure if it comes out the tap at 7.2 then it will remain at 7.2 always smile.png (other things will make it fluctuate but still won't matter wink.png) The pH perfect just makes all nutrients available at 7.2 smile.png Things that wouldn't normally be taken up at that pH range will now be taken by the roots (through the process of charged ions or something crazily scientific, lol)

I think I have explained but im totally baked as im smoking some cheese, lemon haze and amnesia haze combos, lol wink.png Im quite ripped wink.png

Hope any of this drivel is helpful, lol smile.png

Gonzo smile.png

Ahhhhh So, am I screwing it up by adding PH down to the mix in order to achieve the desired 5.8-6.0? Thanks for the reply peace...bongwater (love the combos!) The Amnesi Haze is my favorite smoke! Had it in Amsterdam 2 years ago. How is it to grow?

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Ahhhhh So, am I screwing it up by adding PH down to the mix in order to achieve the desired 5.8-6.0? Thanks for the reply peace...bongwater

I think that might be your problem :) Throw your pH pen away and let the magic happen, lol ;)

Take it easy dude :)

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Well, I should have waited for your reply. I just fed them for the first time after a flush and PH'd the mixture down. Shit! It was a light feeding and about 2/3 ltr each plant. Should I hope for the best at this point and throw away the PH down, or is there something I should do right away? Thanks again and sorry for being such a dumbass! peace...bongwater (my last post of the day, I promise!)

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Well, I should have waited for your reply. I just fed them for the first time after a flush and PH'd the mixture down. Shit! It was a light feeding and about 2/3 ltr each plant. Should I hope for the best at this point and throw away the PH down, or is there something I should do right away? Thanks again and sorry for being such a dumbass! peace...bongwater (my last post of the day, I promise!)

Don't worry about it dude :) There are no dumbass' in the growing world just learners :) I am one of these people too ;) If you were growing in soil then you couldn't feed again the next day because the roots would drown but your in coco so you should be able to feed it daily without issues (although I wouldn't). If you need to flush the next day it should be ok :)

What im trying to say is that you can just go and flush again with some new solution, forget the pH stuff. Forget the term "pH" lol ;) 100% coco should still have enough air in it to flush the day after a feed without problems :)

Sorry I never got back to you lastnight I had to go and do stuff ;)

Hope this helps :) and don't hesitate to ask again and again and again if you have to, that's why we are all here ;)

Take it easy man ;)

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Thanks bro! I was corresponding with the AN people and they said that if I fed my three week old plants at 1/4 strength, I severely underfed my plants! WTF! :comando:

AN said...

If you mixed your nutrients (pH perfect) at ¼ strength, than you severely under fed your plants, yellow or brown inter vein areas and serrated edges with curling upwards are symptoms of deficiencies. The pH settles where it settles it is not important with the pH perfect formulas, always feed at the recommended amount for the week that the plants are in, the sweet spot for pH is pH 5.6 – pH 6.5 it can go slightly lower or higher than that, it does not matter, do not adjust it, the Humic and Fulvic acids increase the pH range for uptake, also do not add CalMag.

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Guys ever thought bout that Girl is overheated??? My Kushes showed the same Signs when there was this Heatwave over in my Area......

Could be...hard for me to keep it under 90 degrees in my space as I am in Texas! I have lots of fans blowing and good exhaust but it's TEXAS! Thanks bro!

peace...bongwater

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for a plant that small, id say feeding it once a day was too much.. coco holds a lot of moisture, and if you dont mix it with perlite youll always get drainage issues. Drainage issues result in lack of oxygen to the rootzone.. as will over watering.. this is what it looks like to me.

ive never liked coco as a medium for this reason, people here, that use it usually feed for about 1min a day.. but as the plant gets bigger it needs to be adjusted. its hard to get it right.

perlite for me is perfect, as you can literally pour nutrient through and never get these drainage issues.. or soggy rootzone at the bottom of the pot. Easier to get a full flush as well if things go wrong, coco isnt as easily flushed.

ive always beleived that mixing 30% perlite to coco a must.

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coco isnt as easily flushed.

Coco on its own maybe but if you mix coco with perlite and add clay pebbles to the bottom then drainage is never an issue, ever :) You can fully flush and feed a new solution in one session :)

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Thanks for your reply my growing friends. I left them alone and let them dry out. About two days between water and fed only once in a week and they are recovering nicely. Heat is still an issue but...it's Texas! This first grow in coco has certainly been a learning experience. I now am watering about every three days. Added some epsom salt which may have also helped. The AN folks were very adamant in their instructions to me NOT to add cal-mag, but the epsom salt did help I believe. Still have some burned leaf tips only. heat? Comments?

peace...bongwater

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only advice really about heat.. im in Australia, so i know about warmth...lol...run your lights at night.. thats obvious.. and more ventilation... and if needed maybe raise your lights a bit more.

MJ plants can take a LOT of punishment, it grows in a massive range of conditions.. so heat really isnt that much to worry about.. its true if plants get over heated they will stop growing, but as long as they got plenty of water to transpire you should be ok..

the main issue is the days and days of extended heat.. and thats when you might have to ad in an air cooler.. expensive to run.

heat rises, thats why in grow room design its important to have extra head room... a good foot or 2 above the light shade, this also helps dissipate the heat from the canopy, exhaust the air from up high.. where the heat is.. and draw in your fresh air from low where its cooler.

in one room i have, theres an evapourative air conditioner i use to pump fresh air into the room.. when its hot.. i turn the cool on.. this might be a cheaper option for cooling rather than running a refrigerated air con and probably about the same cost to set up.

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