Is this casued by PH problems (leaves are dry and brown)

plebschmo

Active Member
Doing 3 water changes today. 1st and 2nd are 30L of water with 10ml of 5% H2O2 for 3 hours each. 3rd is 20L of slightly weaker nutes with H2O2 and the Dutch Zone. Hopefully this cleans some of the rot out if there is rot. I'll put up some more pics in a couple of days.

Also ordered some Great White as it seems to be the only bennies I can get.

Still thinking of investing in a 20L/min air pump but undecided atm.
 

MrGreenFingers99

Well-Known Member
Doing 3 water changes today. 1st and 2nd are 30L of water with 10ml of 5% H2O2 for 3 hours each. 3rd is 20L of slightly weaker nutes with H2O2 and the Dutch Zone. Hopefully this cleans some of the rot out if there is rot. I'll put up some more pics in a couple of days.

Also ordered some Great White as it seems to be the only bennies I can get.

Still thinking of investing in a 20L/min air pump but undecided atm.
Just make sure the dutch master can be used with peroxide as otherwise your just wasting money as the peroxide will kill all bennies but not sure exactly what the dutch master stuff is?

Definitely dont use peroxide with the great white
 

MrGreenFingers99

Well-Known Member
Your other option is to brew a heisenberg tea, here is a link on how to and the benefits, seems like alot of work to me though!


 

plebschmo

Active Member
Update:

I dont think the H2O2 flush really helped that much. What i did notice is that for the first couple of days after the flush the PH did not drift upwards as aggressively, but no its back to drifting up about .5 a day at least. I've purchased a couple of different bennies but still waiting for them to arrive. When they do I think I'll give the heisenberg tea a shot. Also ordered a 20L/min air pump and 2 air stones so hopefully that will help too.

Here are some pics:


Although there is some new growth, its much slower than I would expect and the leaves seem to be having the same issues (dry, brown etc.) as they get larger...

The roots are very brown again with some black sludge on them, although I can't tell how much of this is rot and how much is staining from the nutes... Neither the roots or the res water have a bad smell to them.
 

MrGreenFingers99

Well-Known Member
Damn sorry to hear there is no improvement, are those holes on the rim of the net pot? If so definitely tape those up, yeah PH is all over the place when you have root rot, double, triple, quadruple check to make sure the res is 100% dark with no leaks
 

plebschmo

Active Member
Update:

Bennies arrived a few days ago and I've formed a plan of action.

Today im changing the res and running 30L of Water with 5% H2O2 10mL for 3 hours, then plain water for an hour to clear out the H2O2. Then I'm going to add water with nutes along with the great white bennies. Later tonight I'll begin to brew some heisenberg tea and add that in a couple of days when its ready.

There is a lot of new root growth coming from the bottom of the pot, lots of little white roots. However the leaves are still spotty and getting dry and brown etc.

I thought steralising the res before adding new bennies would be the best course of action. I'll post more pics in a couple of days.
 

MrGreenFingers99

Well-Known Member
Good news about seeing some new white roots and sounds like you've got a solid plan!

What's the new growth like as the old stuff wont recover, are your PH and PPM'S more stable?
 

plebschmo

Active Member
So i executed my plan, flushed the res twice, once with h2o2 then added nutes with some GreatWhite, set the res to 21 celcius and this is the results after about 24 hours:


Not sure if its good or bad. There definatelly seems to be something growing on the roots now and the res is the color of soil and has some sediment since adding the GreatWhite... But the roots don't smell bad and neither does the res so I don't really know whats going on. Maybe good but probably bad I would imagine.

The new growth looks OK but as the leaves get bigger they begin to get those spots.

The PH went up a little more today - approx .5 pH and the EC dropped from 1.5 to 1.4

I probably shouldn't have topped it a couple of days ago too.

Going to start making the heisenberg tea tomorrow as I got the last ingredients today.

Hopefully some signs of progress by the end of the week.
 

MrGreenFingers99

Well-Known Member
There seems to be signs of improvement but it's real hard to tell as what your using makes the res so dark that now the roots look black! This is why I like my nutes as my res is crystal clear so I know if my roots arent white I have an issue.

Did you desolve the great white in a little warm water before adding it to the res? Maybe it will get rid of the granules but never used it so not sure!

Regarding the PH rising, in my system i need to mix my nutes up at 0.6 lower then my target because as soon as the mix becomes oxygenated from the airstones this is how much it makes it rise with a few hours but then it stabilise's after that initial rise.
 

plebschmo

Active Member
There seems to be signs of improvement but it's real hard to tell as what your using makes the res so dark that now the roots look black! This is why I like my nutes as my res is crystal clear so I know if my roots arent white I have an issue.

Did you desolve the great white in a little warm water before adding it to the res? Maybe it will get rid of the granules but never used it so not sure!

Regarding the PH rising, in my system i need to mix my nutes up at 0.6 lower then my target because as soon as the mix becomes oxygenated from the airstones this is how much it makes it rise with a few hours but then it stabilise's after that initial rise.
I did not dissolve the greatwhite in warm water before but i'll do that next time. I did add it to water and kind of stirred it before adding it to my res, it looked dissolved but I don't think it was.

Is there somewhere I could read up on the nutes you use?

Cheers mate
 

MrGreenFingers99

Well-Known Member
Yeah sure but again I'm not sure you can get them in Aus, I just use the Katana roots, silicon, calmag, hydrogrow A&B, hydrobloom A&B and then hydroguard and I use massive bloom as my bloom booster.


Hopefully the tea works out, leaves seem to be getting a little less crispy, hopefully within a new set or 2 the burning stops.
 
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plebschmo

Active Member
Update:

The plant seemed to be doing better for a couple of days after adding the greatwhite to the res last water change, or it could have been because I upgraded my air pump to a 20L/h pump. Lots of new root growth and its gotten a little bigger.

However, I made the heisenberg tea (with mycoapply and greatwhite (which I later learned seem to be the exact same thing lol) and earth worm castings), let it bubble for 48 hours and added about 1.5L to the res through the net pot. I'm not sure if this helped or made it worse because now, about 2 days after the leaves have started to curl in on themselves.

Pics of leaves and roots:


Perhaps the leaves are curling like that because of another issue? Maybe I was blowing too much air at the plant? Maybe its because the dripper got clogged and it wasn't getting enough water? Not sure whats going on, it just seems to be 1 step forward, 2 steps backwards with this grow :(

Anyway, hopefully it will get better in the next couple days. I'll try the heisenberg tea again next water change and hope for the best. Or should I just chuck the plant, sterilize the whole system and start again?
 

MrGreenFingers99

Well-Known Member
Update:

The plant seemed to be doing better for a couple of days after adding the greatwhite to the res last water change, or it could have been because I upgraded my air pump to a 20L/h pump. Lots of new root growth and its gotten a little bigger.

However, I made the heisenberg tea (with mycoapply and greatwhite (which I later learned seem to be the exact same thing lol) and earth worm castings), let it bubble for 48 hours and added about 1.5L to the res through the net pot. I'm not sure if this helped or made it worse because now, about 2 days after the leaves have started to curl in on themselves.

Pics of leaves and roots:


Perhaps the leaves are curling like that because of another issue? Maybe I was blowing too much air at the plant? Maybe its because the dripper got clogged and it wasn't getting enough water? Not sure whats going on, it just seems to be 1 step forward, 2 steps backwards with this grow :(

Anyway, hopefully it will get better in the next couple days. I'll try the heisenberg tea again next water change and hope for the best. Or should I just chuck the plant, sterilize the whole system and start again?
Yeah bro the roots are certainly better! I would personally carry on, the leaves curling up like that is still from the rot but because you topped the plant when it wasnt healthy you have slowed down the new growth, I reckon you will start getting some normal looking leaves soon and it looks like there is much more water agitation with the new pump.

I would persevere to the end take whatever harvest you can get and take it as a great learning experience.
 

plebschmo

Active Member
Update:

So i used the rest of the heisenberg tea on my last water change. It seems to leave a lot of brown sludge in the res, but i wiped away most of this with paper towel. I may give it a flush with plain water tomorrow before I do my water change. I've also started using half the amount of additives.


Anyway the plant seems to be recovering nicely. Lots of new growth and lots of new root growth. Only issue is that the leaves still seem to develop rust looking spots, starting at the tip then extending to the base. The leaves also seem to droop and curl up (although the drooping may be exacerbated in the pics a little as the lights were off by mistake for most of today). Tent temps are between 20 - 27 celcius and humidity between 45 - 65%

Any idea why the leaves are still getting spots and are curling/drooping like that? Could it be over watering from having a small stream of water running through the pot 24/7 (I removed the dripper part of the hose as it was getting clogged and now it just hoses water onto the clay pebbles...)

I've ordered some cal-mag as I've read that LED grows can suffer from mag deficiencies so hopefully helps a little.
 

MrGreenFingers99

Well-Known Member
Nice to start seeing some green on the plant! Great perseverance man, I would get rid of those battered leaves now as there not doing anything whatsoever!

I think the rust spots and the drooping is still from the rot as when those leaves were initially developing it was when you still had it, it will take a couple sets to sort itself out.
 

plebschmo

Active Member
Nice to start seeing some green on the plant! Great perseverance man, I would get rid of those battered leaves now as there not doing anything whatsoever!

I think the rust spots and the drooping is still from the rot as when those leaves were initially developing it was when you still had it, it will take a couple sets to sort itself out.
Cheers mate, its looking much better :) so thanks again for your help!

Just did a water change (used 1/2 additives), set EC to 1.9 and added some Mammoth P this time as well as Great White. I noticed when I did the water change this time there was a lot less brown sludge covering everything so I think the heisenberg tea has done its job.

I think adding the bigger air pump has also helped with root growth a lot too.

I think I'll wait till the end of the week, top it once more then run it on veg for 1 more week before switching to flower. I'll keep posting updates but they may be less regular.
 

jondamon

Well-Known Member
Cheers mate, its looking much better :) so thanks again for your help!

Just did a water change (used 1/2 additives), set EC to 1.9 and added some Mammoth P this time as well as Great White. I noticed when I did the water change this time there was a lot less brown sludge covering everything so I think the heisenberg tea has done its job.

I think adding the bigger air pump has also helped with root growth a lot too.

I think I'll wait till the end of the week, top it once more then run it on veg for 1 more week before switching to flower. I'll keep posting updates but they may be less regular.
1.9EC

I use coco and never exceed 1.4EC my entire grow.

** edit ** my nutrient manufacturer advise 2.4-2.8EC at height of flowering!!!

I fail to comprehend how no one has yet told you to reduce your EC down.

are the nutrients you’re using organic?

if they’re not my plan of attack would be to reduce EC down to around 1.2EC. make sure 0.2-0.4EC is calmag and the rest just base nutes.

To me it looks like you’re killing that plant with too much food.

but that’s just me.

sorry I didn’t get here earlier.
 
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