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canoeing sounds like ph or overfert or perhaps heat stress to be honest but I've never done 80% humidity so can't be sure. If you can post a pic that would be great.....also where are your numbers at and how often are you changing out your res?
Ps...if you can't post a pic than e-mail me with one if possible.
I have attached a couple different pictures, two of the canoeing and one of the yellowing.
The yellowing is happening at the canopy level. It is happening to all of my Arctic Sun plants, but neither of my Atomic Haze show any yellowing, save for a couple leaves.
In the past couple days, the ph has fluctuated between 5.7 and 5.9, which is what it is now.
The ppms have grown from 1220 to 1240 since my last res change, which was last Wednesday I want to believe.
The RH is at 65%, temps at 75F.
I'm not sure how close your light is but the first two photos look like heat stress. The third looks like a k def but is there any chance I could see a photo of the yellowing in relation to the rest of the plants? Is it only on the older and/or lower leaves? What medium are you using again? A certain amount of yellowing/browning of the lower leaves IS normal but I've had k defs etc seem low....then begin crawling up the plants madly (my white rhinos did that and ended up w/small amount of mold due to the plant's general health even with good rh) so watch it carefully and see if it "climbs" up the plants
I will move the light further away, the leaves showing the canoeing are the closest to the light.
The yellowing is happing on the top of the canopy. Both new and older growth are showing yellowing.
The girls were planted in RW and I surrounded the cubes in hydroton. It's an aeroponic sprinkler setup so the roots are hanging down into my reservoir while the roots in the air get sprayed.
i was also thinkin heat (i learned lots about heat, the hard way of course) but was waiting for the WH to chime in 1st.:D
Might be time for a system flush.....I'm not a huge fan of the hydroton or the rockwool but there are flaws to every single medium so it's six of one and 1/2 dozen of the other.
I'd flush the system if I were you but I'm just not quite sure how to do that with rockwool. Do you have (or can you get) Florakleen and do a system flush? You have some decent defs showing and I think the problem is probably salt build up related.
Your buds are starting to look very good cm....they are close enough together however that I would definitely worry about mold and fungus. If you aren't spraying them with something (I use Serenade) I would consider it if I were you and DEFINITELY a dehumidifier.
To me it looks like the leaves are cupping due to heat. Mine looked like that when temps got over 100 F in September. Flushing them with FloraKleen is also a really good idea prior to heading into the last half of flowering.
I stole these from Dutch Pimp. :D
Thanks for the replies!
So, I'm going to get Florakleen, Serenade, and a dehumidifier this week!
I agree about the salt buildup in the rockwool... I can see white crusty things on the rockwool and so maybe if I pour RO water through the RW enough until it goes away? I will also do a system flush. Does that mean that when doing a system flush with florakleen the girls don't get any nutes? Wouldn't that increase the def and thus the yellowing? I have the thread about flushing w/ florakleen before harvest bookmarked, should I follow it?
I will also raise the lights and LST the high leaves so they're farther away.
Thanks for the replies!
I got 12 grams for $40 tonight, so I'm happy :)
Sensi Star it was called
Well if the problem is fert buildup in the medium then you don't have a true deficiency....it's actually a def due to a lockout....too much crud and salinity in your medium can affect the roots ability to uptake nutes thus LOCKING things out. Abnormal ph will do the same thing. ;)
You are much better off using the Florakleen for 24 hours than just pouring water through at this stage. I would use 10ml (2tsp) a gallon for 24 hours (watching ph constantly...it WILL shift alot) then replace the system with fresh nutes. Sorry....more water to carry.....:wtf:
S-O-B!!!Quote:
Originally Posted by cmasfca
IM LIVIN IN THE DAM SAHARA DESERT THIS WEEK.
I NOW HATE U:mad:
If you, or anyone else for that matter, ever go through the San Jose area, I would be happy to meet you somewhere :thumbsup:
:bigsmoke:
no worries dude, next time im in frisco:thumbsup:
i just hate the fact that i had to go against my better advice and pull a pantie-raid on Ping n Pong tonite, just so i can mellow enuf to get to bed before 4 or 5 :icon506:(i actually need one of these smilies smashing its own head! admin? lil help?):wtf:
The ppms are now 1310...I added in 5ml / gal of h2o2 and I am going to get the florakleen and the dehumidifier tomorrow and flush the girls.
Would this increasing ppm be indicative of a def? Or could it be indicative of them drinking water? The level of the res is definitely dropping.
If you started at a lower number then yes...they are drinking more water than nutes.....BUT...STOP....don't lower your ppms.....thank you. DO keep your number under 1350 however. You can add more RO water to drop them back but realize that your ratios are changing as well so it's not an excuse to do less res changes. ;)
Thanks for the reply :)
I will keep them under 1350 and will still do the flush tomorrow. Any recommendations for a dehumidifier?
i bought mine off of amazon.com but can't remember what kind it is. I live WAY out i the boonies so I get everything off of amazon. If you can....get one that you don't have to empty daily.....that was someone's else idea which I've stolen along with those photos. Not essestial.....but kind of nice not to have to do every day. :)
Hey CM, can you start putting "Day XX of Flower" in your title to your posts so I can remember how far along you are? I don't wanna get slapped for mentioning the "H" word before 60 days.... MVP :jointsmile:
Day 35 of flowering is today. :jointsmile:
So the ppms are now hitting 1350.
Could my light be too close to my plants? The bulb is about 20 inches from the canopy, it's a 600w HPS. Is that too close? Can heat stress cause the lockout and resulting def that I am now seeing? The amb. temp doesn't get above 80 in the daytime, does that not matter?
Thanks!
EDIT: I haven't mentioned it yet, but WH mentioned ph problem. The ph hasn't been out of the range of 5.6-6.0 since the last time i did a res change and the ph dropped to 4.0 for about 30 minutes while I was adding nutes to the reservoir. Could the ph at that acidity for the relatively short time cause a lockout? I am adding my RO water into the res, then adding the nutes, then adjusting ph. Should I measure out nutes in 5gallon jugs instead of pouring tablespoons of concentrated nutes into my res?
Oh God, I'm answering these questions to myself.
Of course it would be bad, because now my roots are in the reservoir, so when I am pouring the nutes into the res they are hitting the roots! Concentrated ProBloom can't be good for roots!
Dammit, I'm an idiot. Why haven't I thought about this? I am going to flush my system and measure out the nutes I need in the 5 gallons so no nasty concentrates are hitting my roots.
I don't really know if 30 min at 4.0 would do anything or not I do agree that you should mix your nutes up seperately always and adjust ph before you add it to the plants. Another thing would be big and sudden changes in water temp (more than 15 degrees difference or so) would be pretty stressful for your plants and may cause damage to the roots but I''m having trouble with heat causing lockout. I still think the problem goes back to fert buildup, just based on the issues I've had with it myself.
Hey cm, can you post some new pics? And if you can get a pic of the entire setup at once in some way, that would be great as well.......hps lighting off!!!! ;)
Ok, just as long as it won't hermie all my girls in one fatal flash of the camera :jointsmile:
lemme go take a picture.
My girlfriend made me cannacookies yesterday and i had 2 about an hour ago and have been vaping for about an hour.
let's see if i can find my way to my bedroom
been trying to be nice on my lungs for a week or so
How could it hurt the girls?
They will just think it's lightning from some autumn storm :P
STOP AGGGG
don't take a photo during their dark period!!!! If it's not their dark period......then great.
Otherwise wait till tomorrow....
Even with Reverse you never know when the plant feels so personally offended it decides to hermie.....if i have one golden rule it's that I don't disturb the plants during their dark time unless there is an earthquake or something.
Autumn storm, lol.....mine never bought that..... :D
lol well might as well post them if I took 'em :P
tomorrow at the hydro shop i'll grab some reverse too haha
Hey cm.....those look really good all in all.....we just need to tweak your nutes a bit to see how can we can keep things ok uhtil the end. I would think about dropping your H202 at this point and thinking about something like hydrogard or hydrozyme (I use cannazym) for the roots. Not necessary but one of the 'zyme" products will help alot with enabling the older and dying (normal process) to uptake nutes until harvest.
What's your ratios at this point? I'd probably think about increasing your CalMag and dropping the bloom nutes a bit.....say in a 60/40 ratio and see.
Stoner!!! :D Don't freak out..... they are a WEED...... BTW I use a separate Rubbermaid tub to mix up the nutes, balance the PPM and PH before pumping them into the res with a little submersible pump I got from Harbor Freight Tools for about 10 bucks, connected to 2 bucks worth of vinyl hose from OSH. Works like a charm.Quote:
Originally Posted by cmasfca
Thats POST flush of course.....
The ratios were right around 65/35 ProBloom to CalMag last res change.
One thing to note:
I drain my res by connecting a hose to the sprinklers and it pumps out the water like 2 gallons a minute or something. The thing is, it doesn't completely drain the water.
In fact, the last time I changed nutes there was 350 PPM of "waste ppms" that could have been any ratio. So, there is around 950 ppms of 65/35 Probloom / Calmag in there now.
I will have the ratio at 60/40 bloom / calmag tomorrow when I flush it. This time, I will drain the water as much as the pump does. Then I will add in 15 gallons of water. Then I will drain that fresh RO water all out and the resulting ppms should be much less after I fill it up again.
I now know the answer to every question I've had so far!
I just need to add more of that precious RO water!
I think for my Birthday I will ask my parents for an under the sink RO unit :(
Yeah, that could tip them a alittle as well. I try to keep the ration of CalMag/bloom nutes over 1000 since about 2 1/2 weeks into flower and anything on top of that is supplement so I'd try and go with that if I were you. Example...350 "extra nutes" floating around.....I'd go with 400/CalMag and 600Pro Bloom and watch the numbers.....are they going up or down?
It doesn't make much difference for this grow but having "extra" ppms floating around once you add Liquid Karma, Sweet, Hydroplex yadda yadda yadda will definitely make things harder for you later.
Well, I know right now that the ppms are raising. From 1220 on the day of the res flush until today they have raised to 1350. I will tell you if the same thing happens tomorrow when I add in 400 ppms of CalMag and 600 ppms of Probloom.
I am going to add a heater into my room to try and lower the humidity!
So I remembered I have a heater in my room! One that heats up an element and smells funny kindof like a toaster. So I turned that one and and also put a portable heater in there.
Hopefully this will cut the moisture down at night and during the day if the temps aren't affected too much.
Yes, the last frontier.....humidity......
How many days are we talking.......last wednesday was res change? And have you been adding water during that time to "top off"? As those beasts get bigger and bigger they are only going to get bigger appetites. If the numbers are staying about the same (raising or lowering about 50ppm a day) you can just add nutes at the same strength when you top off......or slightly less strong if the numbers have risen. They will drink quite a bit of water from here on in as well. Don't let your res get too low as that will REALLY screw with your ratios.
If you add a heater you will see the ppms rise more than if you didn't have extra heat in with them. This is normal but you should keep a good eye on your daily trends.
I haven't yet added any water since last wednesday's res change. I am just doing this heater experiment tonight so that I can see any affect. I am doing it at night because that is what it is right now, plus 70 degrees has more room to get warmer than 80 F :)
Ok.....I think i might smell lockout ....while the numbers may not seem to change much to you the ratios could have really changed. You need to keep x-amount of nute solution in your res at all times....as the rez level goes down replace it with more to keep things in balance. Does that make sense?
Ah, I see. Will remember this info :thumbsup:
So what's going on over there? How about an update??? :wtf:
You don't have to ask me twice :)
I talked to my local hydro guy for about an hour the other day and he said that the discoloration might have been caused by a lockout from too much calmag. So, per his instructions I flushed my system and put in probloom at 20ml/gallon and calmag at 5ml/gallon.
The ppms are at 1250 right now and the ph is at 5.7. When the solution was first put in the reservoir it was 1260 at 5.9 ph.
I got a rubbermaid 18gal tub and a cheap pump. I now mix my nutes in that and then pump them into my res after the ph and ppms have been established. No more nasty concentrates hurting my roots :)
The res change was on saturday. How do they look?