everything is dying!!! pls help lol

So I'm going to post a few pics and maybe you can tell me what's wrong. In two weeks my scrogg went from healthy and all good to pretty much piss poor.

The leafs start getting brown veins. And then brown spots and as the brown spots get darker the entire leaf starts fade to yellow until it's just a faded yellow leaf with dark brown spots. started with the fan leafs then went to bottum of plant and is working its way up. and of the 4 main plants in the scrogg only 3 are doing this, they all reci\eive identical feedings same medium, same pot size, same strain and age and so on and so on.

first three pics are the first sign i see of just the browning veins, if i didnt pluck the leafs in the pic off the plant over the next week or so they would become completely faded yellow and dry up.








also the little white specks on the one leaf are actually little specks on the plant and not dust or just from the pic.
and it might be hard to see in the pic because the hps is turned on but all the plants except the one in the front left are doing this.

any input would be awesome. my ph meter decided to stop working a few weeks ago so i cant say forsure what it is. but never growing in the setup at this location have i needed to do anything at all to my water, after nutes it hangs around 6.2 - 6.5 which should be and has always been fine with the promix and perlite mix i use.

no mention of your feeding system, schedule, temps?
I'm holding my breath, please , do tell.
good news is, you have time to save these hopefully.
are they in veg or flower now?

just went into flower. They have had two night cycles. I was going to keep them in veg but there getting close to 10 weeks so either I put them into flower and try to fix them or I cut my loses and try again lol I first tried upping there nutrient dosage it got worse so I tried flushing. Then fed them half Nutes and last time was just water. I use miracle grow 15-5-5 for veg and miracle grow 5-15-10 for flower. Every second or third feeding I give them cal mag. And every third watering they get just water. Miracle grow I know.... Works fine if you don't care about the stigma of using miracle grow.
They ussualy take 3 or 4 days to completely dry up there buckets but I see right now it's been 3 days and the healthy looking plant is dry while the other 3 will need a few days to dry up. So it's like there not absorbing water. The temps are a bit on the cooler side sitting at a pretty much constant 20 degrees Celsius.

I'm going to go get a new ph meter sometime in the next week. I would already have one but I need to drive a hour and a half to the next town to get it and I'm almost positive my water hasn't changed so the ph should be what it always is.



To me it looks like a cal mag and nitrogen deficiency

And the pic that shows all of them makes it look better then it is. I think it's the hps washing out the pic but 3 of them are like really getting yellow

whoa..

10 weeks of veg time is not a critical tipping point, what r you talking about "cutting you losses, and put them in flower? you can veg a marijuana plant indefinitely.
2 these need to go into veg and heal right now, maybe a fail by now even.
miracle grow is your issue, burning your plants, locking our nutrients, uptake has ended, ph off the charts maybe. prolly a total fail now with facts, sorry.

its not stigma with MG, its knowing what your plant needs, and providing it. mg wont do that for you now the way you're using it.
dude, you got a proper nutrient system deficiency is all.

I've had many successful grows with miracle grow. They contain micro nutrients but no cal mag which is why I supplement with cal mag. Last grow was the exact same setup but it was northern lights autos and I yielded just over 10 ounces dried and cured from 4 plants.
I can't see my ph being totally out of whack. Last time I phed was only two weeks ago and the nute regiment hasn't changed.
I'm with you it's a defident deficiency of some sort and I'm not sure what. Hence why I'm here posting pics and asking for advice.

And about cutting my losses. I'm 10 weeks into the grow. So rather then spend X amount more weeks in veg trying to sort this out I had to decide do I push on with my planned 10 week veg and then flower or do I just chop them and not need to worry about fixing problems while in flower

2EyedCyclops said:

I've had many successful grows with miracle grow. They contain micro nutrients but no cal mag which is why I supplement with cal mag. Last grow was the exact same setup but it was northern lights autos and I yielded just over 10 ounces dried and cured from 4 plants.

Click to expand...

(no cal/mag, thats good to know). my dads friend had a patch behind the barn he only used miracle grow too. I was impressed with the results all the time. it was outdoors though, with more natural resources available.

They are hungry, that's why they are going catabolic.

But you are using Miracle Gro and not pHing your water so who knows.

White spots?

Look under the leaves for webbing or red or brown specks. Mites.



Could be root bound and chronic under watering.

Could be a lock out.

Take a pic with blue light so its easier to tell.

whitebb2727 said:

White spots?

Look under the leaves for webbing or red or brown specks. Mites.



Could be root bound and chronic under watering.

Could be a lock out.

Take a pic with blue light so its easier to tell.

Click to expand...

Kudos for being the first person to mention mites!


Is there yellowing?
If it is yellow, how is it yellowing, from the tips towards the stock or from the base to the tips?

Where are the problems most heavily concentrated? New growth, old growth, middle of the plant or the whole plant.

You say after nutrients the pH balances between 6.2 and 6.5, which regardless of SOIL composition is perfect, but just because they balanced between that weeks ago doesn't mean they are now, pH, as simplistic as made out to be, simply isn't, pH can be affected by simply water temperature, so then and now just can't be compared unfortunately You can't force your rhizosphere to properly absorb molecular salts if the pH isn't correct do to how they ionically absorb into the plant, if you don't want to p.h, then go organic.

What about ppm?

I wouldn't suggest throwing out a crop of 10 week old plants, that seems a little rash, once your problem is located and corrected it will be minimum time until the plants are ready for flower production. So as long as the problem is addressed now, flowering shouldn't be farther than a week, two tops away. Vs throwing a crop out and re-vegging until a suitable size, as stated above cannabis can be held in a vegetative stage forever, equatorial Sativa's are held naturally in vegetative stage for months. Cannabis plants will exhibit preflowers during vegetative stage once it has reached full maturity and is ready for flowering, mind, you absolutely can flower prior to the preflower stage, that is just one tell tale sign your plant has reached maturity.

And if it's all your plants acting the same way then it's you, not them, I would immediately get a p.h. meter check run off for pH, and ppm, throw away the m.g. and buy two 32 oz bottles of cannabis guided flowering nutrients for 20 bucks a piece, and let's fix this problem. Even at 50 a piece for pH meter and ppm meter, plus nutes your looking at no more than $140 investment, and you have a crop potentially worth 10x that investment, if you have the available funds.

They look well enough to save. Let them dry out thoroughly, Then only give them plain Water allowing to DRY out fully before just water again, they will stabilise an all those affected sugar leaves will wither an fall off. Once they turn you can help by cutting off those wilting leaves. Chill an let em grow without over handling or stressing yourself. To chop them would be a total waste of a good looking crop. Would be good to see how they turn out. Just saying

this weekend im going to the store to get a new ph meter. i might get some new nutrients. all there hydroponics store carrys is general hydroponics and they charge and arm and a leg for it because there the only store that sells that kind of stuff without traveling close to 5 hours.

there def not being under watered. i always let them dry out before i water. usually takes 3-4 days, but after the last watering one plant (the healthy one) dried out in its usual time, but the other 3 are a solid few days away from being anywhere near dry. last night i did a bit of a flush on the one that needed water. i ran 10 gallons of plain water through its 5 gallon bucket.
that leads me to the next point, there def not root bound. they are all planted in 5 gallon buckets so i dont think that would be the case. and if they are root bound they should be fine. a 5 gallon root ball should be more then enough to keep these plants fed.

so a few questions, they are currently only on there 3rd night cycle so hardly into flower. so should i just pull them back out of flower untill its fixed? or do you think proper nutes and making sure the ph is good will be enough to keep it in flower and fix it at the same time?
so i geuss the best plan would be to completely flush, make sure the ph is good going into and out of the buckets and try different nutrients?

o and no mites. the little white specks you can see in the one pic are just on the top of the leaf. there not holes all the way through, and no sign on bugs anywhere in the grow area, grow medium or on the plants.
just seams like this rotation decided to hit a wall and through all kinds of crap at me

so i got the ph meter and checked my water. im pretty positive i found the problem. i have always used water from my kitchen sink because i have always used a one ish gallon jug to water. now for the first time im using 5 gallon pots instead of 3 gallon pots so i went and got a big 5 gallon jug with a hose so i can reach back and water the back row of plants under the screen. only thing is i have to get water from the bath tub because the new jug wont fit into the kitchen sink.

long story short. my water supply for the bathtub ph's at 8.2.... so i did a major flush with water phed at 5.8. the run off went from 7.4 to 6.2-6.4.
should i be in the clear now as long as i keep the proper ph when i water from now on?