Roots rotting in DWC in **empty** bucket
- Thread starter PurpleHaze777
- Start date
OldMedUser
Well-Known Member
The 3% has stabilizers in it and isn't best if used often. If it's to be used for treating root rot in hydro you would have to use 11X as much as you would if you used food grade 35% which is pure H202 and water only.
For instance: A tall Rubbermaid tote holds 50L with pots installed and if I got rot I'd want to use 4ml/L of 35% so 200ml. With 3% I'd need 2.,200ml or probably 5 drug store bottles worth. It would be a lot more expensive considering a 4L jug of 35% cost $65 last time I looked. I bought a 1L jug at the health food store a couple months ago for $18.
I'm on the fence about that.
Lpena007
Well-Known Member
The 3% has stabilizers in it and isn't best if used often. If it's to be used for treating root rot in hydro you would have to use 11X as much as you would if you used food grade 35% which is pure H202 and water only.
For instance: A tall Rubbermaid tote holds 50L with pots installed and if I got rot I'd want to use 4ml/L of 35% so 200ml. With 3% I'd need 2.,200ml or probably 5 drug store bottles worth. It would be a lot more expensive considering a 4L jug of 35% cost $65 last time I looked. I bought a 1L jug at the health food store a couple months ago for $18.
I'm on the fence about that.
you might want to experiment yourself.
i used many clones to experiment on, I’m pretty accurate. I’ve almost killed some and brought them back from the grave just to see what happened
xtsho
Well-Known Member
Same thing with ISO at the feed store. Was lots a couple weeks ago but all gone now. I just got a new litre of 35% peroxide a couple months ago and haven't even opened it yet as I still have about 250ml of the last one left. Got a fax machine so I can send you some?
Some guys use bleach and even pool shock instead of peroxide and it does work but you'd have to do some searching here or on the web for how much to use.
Maybe just snip the bottom 1/3rd off the root and get it in a pail of nutes. If it survives it'll grow lots of more roots fast. 300 - 400ppm or so is good for her atm.
When I was doing flood and drain I used good old chlorine bleach in the reservoir. It never hurt the plants and kept the rot away. Commercial hydroponics growers have been using it for decades.
Waiting for the gasps from those that think I'm crazy for actually adding chlorine to my grow.
OldMedUser
Well-Known Member
I've used peroxide for years. We keep a 500ml water bottle by the bathroom sink and I put a few drops on my toothbrush then dip into a baking soda/pink sea salt mix, add a small dab of toothpaste and when done rinse and add a few more drops of peroxide to keep the bristles sterile and white for the life of the toothbrush. I dilute the 35% to 4% for that.
If it works for you then I say do it! In potted plants the radical 0+ molecule reacts with the first bit of organic matter it meets and would have to contact another 0+ to form 02 which is what both the plants and us animals need.
OldMedUser
Well-Known Member
I know it works but the chlorine in bleach forms chloramines when it reacts with organic matter like anaerobic bacteria which is what you're trying to get rid of. That's what makes your eyes red in public pools, not the chlorine itself. Other organo-chlorides are formed too and chlorine itself is a known carcinogen. H2O2 has none of these issues.
Not that it's going to hurt the plants any unless they absorb excess chlorides.
xtsho
Well-Known Member
I know it works but the chlorine in bleach forms chloramines when it reacts with organic matter like anaerobic bacteria which is what you're trying to get rid of. That's what makes your eyes red in public pools, not the chlorine itself. Other organo-chlorides are formed too and chlorine itself is a known carcinogen. H2O2 has none of these issues.
Not that it's going to hurt the plants any unless they absorb excess chlorides.
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You seem to know more about the science of it than I do. But it worked keeping rot away using about 4 ppm's. There is also chloramine in the tap water where I'm at. The levels of chlorine or chloramines in tap water are not high enough to do any harm. To this day I still use tap water straight from the tap. I even water outdoor plants in pots with water straight from the hose and I've never had any issues. Plants grow healthy.
I did use 35% H202 for a while but bleach was so much cheaper and it doesn't burn like that industrial strength H202 if you get it on your skin. Don't ask me how I know.
Waiting for more gasps
OldMedUser
Well-Known Member
You seem to know more about the science of it than I do. But it worked keeping rot away using about 4 ppm's. There is also chloramine in the tap water where I'm at. The levels of chlorine or chloramines in tap water are not high enough to do any harm. To this day I still use tap water straight from the tap. I even water outdoor plants in pots with water straight from the hose and I've never had any issues. Plants grow healthy.
I did use 35% H202 for a while but bleach was so much cheaper and it doesn't burn like that industrial strength H202 if you get it on your skin. Don't ask me how I know.
Waiting for more gasps
No gasps from this guy. Sure 35% burns fast and only an idiot screws around with it without using eye protection at least but if it gets on my skin I always have a spray bottle full of RO water handy and just give it a spritz to wash it off. Looks scary as it turns the skin white so fast but that's just because it reacts with dead organic matter very rapidly and our skin has a layer of dead skin cells all over and that's what it's foaming on first. Once it runs out of those it attacks living tissue so you want it off PDQ before that happens.
I used to be of the school that thought you had to aerate your tap water for 24hrs but there is so little residue chlorine or chloramine in proper tap water that it isn't going to hurt anything to use it straight unless it's really cold then it can shock the roots and soil bacteria likes warm conditions.
I picked up a 50W aquarium heater I keep in my 5gal jug of RO now. Keeps the water a nice 77F. Airstone plugged into my exhaust fan controller so when it kicks on the air does too. I like it.
PurpleHaze777
Member
How much chlorine should I use and how: dip the basket into it or rinse? This is the plant’s last chance—still no h2o2 in the stores. 
OldMedUser
Well-Known Member
If using regular laundry bleach that is about 5% sodium hypochlorite I would dilute it 20:1 I would think and just dunk the root 3/4 or so unless you see problems all the way up then you may have to stick the whole pot in too. 10 sec then lift out, wait another 20 sec or so then dunk it in fresh water to rinse it off.
That's just what I would try in your situation but I've never actually done that. If it survives the treatment as I'm pretty sure it will you should check the roots every day and as you have nothing else I'd add a tsp/4L to your pail. If it's a 20L pail it won't be holding that much with the net pot in there so provably more like 15L actual liquid.
Fingers crossed eh!
That's just what I would try in your situation but I've never actually done that. If it survives the treatment as I'm pretty sure it will you should check the roots every day and as you have nothing else I'd add a tsp/4L to your pail. If it's a 20L pail it won't be holding that much with the net pot in there so provably more like 15L actual liquid.
Fingers crossed eh!
it's true that all commercial H2O2 has stablilizers, but food grade is difficult to find locally and ships with haz mat charges. I use DM ZoneThe 3% has stabilizers in it and isn't best if used often. If it's to be used for treating root rot in hydro you would have to use 11X as much as you would if you used food grade 35% which is pure H202 and water only.
For instance: A tall Rubbermaid tote holds 50L with pots installed and if I got rot I'd want to use 4ml/L of 35% so 200ml. With 3% I'd need 2.,200ml or probably 5 drug store bottles worth. It would be a lot more expensive considering a 4L jug of 35% cost $65 last time I looked. I bought a 1L jug at the health food store a couple months ago for $18.
I'm on the fence about that.
OldMedUser
Well-Known Member
Chlorine will kill them
How do you figure?
OldMedUser
Well-Known Member
Those hazmat charges really hit the wallet too.
I want to make STS to resex some girls and needed sodium thiosulfate, (I made my own silver nitrate). Took me months to finally find a place that would sell it to me in Ontario and I'm in Alberta. They sell bulk but would repackage 500g for me for only $22. Whoo-Hoo!
Said to call back the next day for the shipping charges. $69 for Purolator Ground service then I had to drive an hour to the closest pickup point!
Oh well. I'll never run out.