My grow 2.5, 400 watt hempy scrog, Big Bud x Northern Lights, OG Kush, and Bubba 76

Hmm, looks like your temps and rh are right in the same range as my own. I'm wondering if you are over watering. I know everywhere states that hempys are pretty much impossible to over water, but I think that may be one major thing that gets over looked. I start my clones in 16oz cups and give them 4oz of water every 2-3 days no matter if they have hit the rez or not. I usually run this schedule in veg - feed/water/water. Now that I think about it, when I was learning how often to water them in the beginning I was watering every day and getting weird deformities on some. Since I changed my schedule they all seem to be doing a lot better. Not to jack your thread but I will show you an update pic of my seedlings (think my first pic of them was in my own thread or World of Hempy). As to the 2L, they take approx 10-12oz every 2-3 days. I have found that in my temps (pretty much steady at 78, lights on) I can take them to 3 days before watering. Only problem I have noticed is that at this stage they are very top heavy when being that dry/thirsty. I'm still working on the best schedule during bloom but as far as I can tell (feed/feed/water) seems to work the best. Need to point out that this can or will be different with all strains with variables such as root zone temps, environmental temps, nute strengths etc. I did find that with my strain at 3 feedings and then watering, I got some slight burn. My feed was 5G/10M/15B (GH). Also to note, I add 1/2 tbsp of epsom salt to my watering (water only) to add benificial magnesium to the rootzone. I am currently testing this and think personally that if I was to keep doing this w/o an actual flush (w/o epsoms), I may get to much salt build-up from the epsom. Most places that I read up on the epsom said 1 tbsp per gal, I figured halving that may not run me into problems, but i'm not so sure as of yet. I will inform you of my findings as soon as I can see the results!!

After sitting here thinking about your wilting, I think your problem is over-watering. Drooping is a sign of over watering and plays as the number 1 result from it. Try watering every other day with 10oz of adjusted water. In turn also use 10oz for your nutes, Your plants will ask for more when you notice they are extremely dry on day 2. Wait, your 100% perlite right? If so don't take it to 3 days, and if you do to test if they can handle it. Make sure to keep an eye on them on the third day. I'm per/verm mix, the verm i'm sure gives me the extra day. I also look for very minimal run off as my current trays have custom holes in them from my previous experiments. So if your set up to take run off, you may want to use 14oz or slightly more to give you more run off/cleansing.

Changed my mind, didn't really want to post my pix in your thread, will post it in mine instead. Peace!!

Thanks for the information man, I've been wanting to cut down on my watering ever since i noticed that my roots had hit my rez 3 days ago, but i wanted to make sure and give any unused nutes a chance to get used before i upped there dosage to the mild veg, I'm going to start watering every few days from now on and i will be keeping a close eye on them as well as testing the weight of them to determine if they need water or not, just out of curiosity are you running RO water or are you using tap with the epsom salts?

I use tap water, has always worked for me with relatively no problems. I aerate my water for 24-48 hrs before use. I know most people using cal/mag, epsom or any other form of calcium/magnesium are usually using RO/Distilled. Problem I noticed with my city water the last couple years is I keep running into a deficiency. Been using tap water my whole life and never seen this before. So I do a little research and find out that possibly one of the chemicals they use to cleanse city water is binding the magnesium up. I was starting to have a deficiency in my moms awhile ago and gave them an epsom spray, back to normal ever since. So I think it is only a slight issue so far and may or may not get worse. My other thought is it may be the time of year/tempurature, I have this one logged in the winter. Hopefully I can remember to look at my notes next winter lol, we will see. Peace!!

They are looking good psilo. I would say your temps at canopy level are fine. My overall closet temps are <82F and at canopy level are approaching 90. The plants can handle a higher radiant heat so I don't think heat is the problem. I would look to something with your nutes. I doesn't look like you are feeding too often, I feed every watering and flush every 14 days or so. When you feed I see it says you are giving them a cup each? Is this giving you sufficient runoff? I shoot for at least 25-30% of my bucket volume in runoff each feeding and then flood them when I flush for well over 100% bucket volume.

I would also look to stay on the higher end of your ph scale around 6.0-6.3 at least that is what works for me. My last grow I ph'd at 5.6-5.9 early and had much of the same problems it looks like you are experiencing. Light colored leaves with burning or rust spots on the fan leaves.

Thanks for the info again shaggn, i was wondering why you were using epsom salts to supplement magnesium when the gh i have has mag in all 3 formulas but now i have my answer lol, I'm starting to wonder if my water might be short on calcium these rust spots are continuing to the younger growth, i got a water report a while back but didn't see anything about calcium on it, strange thing though only one of these plants is being afflicted with the rust spots, ether way it doesn't look to serious yet I'm going to stop watering so much and hope that the issue corrects its self.

stoneslacker said:

They are looking good psilo. I would say your temps at canopy level are fine. My overall closet temps are <82F and at canopy level are approaching 90. The plants can handle a higher radiant heat so I don't think heat is the problem. I would look to something with your nutes. I doesn't look like you are feeding too often, I feed every watering and flush every 14 days or so. When you feed I see it says you are giving them a cup each? Is this giving you sufficient runoff? I shoot for at least 25-30% of my bucket volume in runoff each feeding and then flood them when I flush for well over 100% bucket volume.

I would also look to stay on the higher end of your ph scale around 6.0-6.3 at least that is what works for me. My last grow I ph'd at 5.6-5.9 early and had much of the same problems it looks like you are experiencing. Light colored leaves with burning or rust spots on the fan leaves.

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I probably have not been feeding them enough this is my first time growing hydro and actually having to feed the plants so i am probably being overly cautious, i am going to start kicking it up though because the plants are going into the veg stage, as far as the run off goes i get a decent bit of run off but i am not sure of the % because i have not measured it, i am going to start measuring the run off and giving them a good bit more water.

Thank you for sharing your feeding technique i have noticed on the days when i fertilize i get a decent bit of growth but over the next 2 days that i was giving them straight water they didn't grow that much at all, I'm wondering if i should take this as a sign that i am under feeding them. Ether way though i like the sound of your feeding schedule and i think i might try it out, i was going to go with shags nute water water every 2-3 days but i think that might compound the problem if i am under feeding. I think i am going to start fertilizing every 2 or so days and then if i see any burn i will flush and lay off a bit that way i ensure that they are getting enough food, because i am really starting to wonder if I'm under ferting and causing my plants issues. As far as my Ph goes it seems to be falling in the range of 6.0-6.2 when i feed...

Here are some pics,

all


veneno






critical+




burmese kush

Since the only nutrients the plant gets are through feedings, I always like to feed at least every 2 out of 3 feedings. As you start to get a feel for them you will be able to dial in the number and frequency of your feedings. I like to push them as far as I can then back it off if they start to show some stress.

I would also tend to agree with shagg that overwatering can cause issues too. There is a common belief that you can't overwater hempy's which I think is mistaken. I like to think of hempys as more closely resembling a soil grow rather than a hydro setup. Much like soil if you keep it too wet than the roots are unable to breathe. Keeping the medium too wet can also cause root rot.

I get a good idea of the weight of my full, freshly watered buckets and then over the next couple days I judge how much water they are taking up by the weight loss. Usually while vegging I go 3-4 days between watering and they are almost feather light by then. In flower 2 days is just about perfect. When I flush I like to give it an extra day to dry out, and I have gone 5-6 days between waterings a couple times with no signs of stress or wilting. This will of course depend on container size so judging the weight of the bucket is the best way to tell rather than just using a set number of days.

The runoff is important in my opinion to wash built up salts out of the bucket. I also forgot to mention that when I flush I like to plug the drain hole and fill the bucket right up, let it sit for a minute or so, then pull the tape off the hole. This seems to create a more powerful drain due to the water pressure in the bucket. Just my opinion but I think that it does a better job flushing out the bucket. Also when I feed I like to hit them with just a portion of the water, until the runoff starts to flow pretty good. Then I tip the bucket to the side and try to drain her out pretty good before I top her off and get a little more runoff.

Subbed and looking forward to watching these girls fill out. Peace man

hey guys, do any of you NOT flush your ladies and feed them right up to harvest day?? drying for 5-7 days longer apparently replicates the 'flushing'
Any thoughts on this?

DrOfWelshMagic said:

hey guys, do any of you NOT flush your ladies and feed them right up to harvest day?? drying for 5-7 days longer apparently replicates the 'flushing'
Any thoughts on this?

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On my last grow i was in super soil so flushing would have been pointless for me so i didnt flush at all, i had 2 plants, i water cured the Blue Cheese and air dryed the white russian, the white russian is significantly harsher of a smoke and the blue cheese is so smooth but the water curing unfortunitly mutes the flavor, its such a tease it smells so good but taste like nothing, anyways if you dont care about weight and you want a very smooth smoke you might consider it as it leachs all of the harsh chemicals out of the weed...

stoneslacker said:

Since the only nutrients the plant gets are through feedings, I always like to feed at least every 2 out of 3 feedings. As you start to get a feel for them you will be able to dial in the number and frequency of your feedings. I like to push them as far as I can then back it off if they start to show some stress.

I would also tend to agree with shagg that overwatering can cause issues too. There is a common belief that you can't overwater hempy's which I think is mistaken. I like to think of hempys as more closely resembling a soil grow rather than a hydro setup. Much like soil if you keep it too wet than the roots are unable to breathe. Keeping the medium too wet can also cause root rot.

I get a good idea of the weight of my full, freshly watered buckets and then over the next couple days I judge how much water they are taking up by the weight loss. Usually while vegging I go 3-4 days between watering and they are almost feather light by then. In flower 2 days is just about perfect. When I flush I like to give it an extra day to dry out, and I have gone 5-6 days between waterings a couple times with no signs of stress or wilting. This will of course depend on container size so judging the weight of the bucket is the best way to tell rather than just using a set number of days.

The runoff is important in my opinion to wash built up salts out of the bucket. I also forgot to mention that when I flush I like to plug the drain hole and fill the bucket right up, let it sit for a minute or so, then pull the tape off the hole. This seems to create a more powerful drain due to the water pressure in the bucket. Just my opinion but I think that it does a better job flushing out the bucket. Also when I feed I like to hit them with just a portion of the water, until the runoff starts to flow pretty good. Then I tip the bucket to the side and try to drain her out pretty good before I top her off and get a little more runoff.

Subbed and looking forward to watching these girls fill out. Peace man

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Thanks for all of the information man i agree with you guys i think over watering is probably an issue, you are right hempy does seem to be a lot more like soil than any of the other hydro mediums and if nutrients can get locked out from over watering in soil i don't see why they wouldn't get locked out in hempy, I've just been watering so frequently because i was waiting for the roots to hit the rez, i have stopped watering daily and I'm going to let the weight and plants tell me when to water. There is a lot of conflicting information on the net about hempys "like the over watering thing" and i appreciate you and shaggn straightening me out on it, also thanks for the info on your feeding schedule and watering routine, i am going to make sure my plants get a good bit of run off from now on and im also going to employ your flushing technique when i need it.

I really do think that part of the issue could be under ferting or lock out from over watering, but i guess only time will tell i want to mix up a full strength dose of nutrients for next watering but i don't know if they can handle it, do you guys think they look mature enough for 1tsp per gallon of gh flora series?

If you want your roots to hit the rez faster, water less. It will inturn set the roots into overdrive looking for a water source, hence the bottom of your container. If you water to frequently, they have no reason to look for a water source. They may be wanting more food and the only way to tell is to bump it up and see what happens, just remember they all may not want more. In veg I choose to grow the plants at their own rate, if they ask for more nutes they get it, otherwise I go by a light feeding schedule until they ask for more.

I grow from clone and they start out with a maturity that is higher than seedlings. This lets me hit them a little harder than I would a seedling.

I would try the same strength but feed more often first, then adjust strength to full over a couple feedings. See how they react and bump it up or dial it down depending on how the girls take it.

You could also try to add some cal/mag which will help them utilize the ferts. If you don't have cal/mag available you can foliar feed epsom salts diluted to 1 to 2 tsp per gallon of ph'd water. This won't work quite as well as cal/mag but will definitely help.

Thanks for the feeding advice guys i just let them go for as long as i thought they could with out watering and it seems to me like that was only about 2.5 days until they started wilting quite a bit, they do seem to have picked up there pace abit though since i have stoped watering daily, thanks for the calmag advice slacker ive been thinking about getting some and some regular GH micro incase my tap water is bad for my plants, next watering im going to bump them up to 3/4 strength and see what happens i will also be topping my non flowering plants soon...

I just googled "brown spots leaf yellowing" and clicked on the first 5 results from rollitup and i found that on every one of the threads every other reply would be another person saying "i have this same problem has anyone figured out what it is?" lol, so what ever is going on with my with my plants must be a pretty common problem, this thread has 67,673 views and 32 reply's lol https://www.rollitup.org/marijuana-plant-problems/34306-brown-spots-yellowing-leaves.html so yeah anyways I'm pretty sure its just under fertilizing I'm going to kick up my nutrients to full strength tomorrow and see what happens...

I topped my plants yesterday and i boosted the nutrients up to full strength mild veg earlier today its been about 8 hours and so far there have been no ill effects.

So its been another 2 days and another feeding i fed full strength again since i haven't seen any ill effects so far, and i seem to have had quite a growth spurt, i topped the veneno and burmese kush just a few days ago so they are growing out a lot more than they are up, but my flowering critical + has jumped ahead by quite a few nodes which is of course to be expected since it is in the early stages of flowering. I am really quite happy that i have a flowering plant already because i am on my last nugg from last harvest, but i am pretty disappointed that i wont get to see my grow room running under optimum conditions after i spent all that time, money and effort on it... I also lowered my reflector to 6.25" from the plants and i noticed today that my veneno has a bit of what i believe is wind burn on it, it was taking quite a bit of a beating from the fan the other day when i adjusted it but i figured it would be fine and when i checked on it today i saw a bit of a black looking streak on one of the leaves so i adjusted the fan to avoid the plant a bit more... As far as the yellowing and spotting on the older growth goes i believe it was most likely a macro deficiency due to me going to light on the nutrients, i haven't seen any of the intreveinial chlorosis spread to any of the newer growth or any of the rust spotting so i think I'm going to be in the clear as far as all that goes...

veneno




burmese kush




critical +

I seen your likes on my recent update How r things? Hope all is going well or atleast growth is happening faster than u anticipated Hope all is well, look forward to an update soon. Make sure those new ladies r treating u right!! Peace!!

Looking good so far man, i bumped up my nutrients again to a little bit under the full dose for aggressive vegetative growth, the bottles said 3 grow 2 micro 1 bloom and i only used 2 tsp of the grow because i didn't want to burn them with nitrogen, i guess its a good thing to because i watered about 15 hours ago and i have a slight bit of burn on one of my plants, i topped the plants about a week ago so there still hasn't been a whole lot of vertical growth on the burmese kush and the veneno but they are getting quite a bit fatter, and the flowering critical + seems to be coming alone nicely...



veneno




burmese kush




Critical +