H2O2 12% : how much?

J

John LOQUE

Member

• Aug 23, 2020

• #1

Hello hydro growers,
every thing is fine except that the water is at 26/27°C, and even with an air pump, root are not beautifull. So i ordered oxyboost, which is H2O2 at 12%, and i would like to know how much i should put in the mix, and how long it lasts...I don't use organic nutes, just chelated.
Thanks

 

S

Substitute

Member

• Aug 23, 2020

• #2

I don't know what nutrient you are using but when I contacted General Hydroponics, they told me not to use hydrogen peroxide because it oxidizes important metals in the nutrient solution. I used UC roots to keep and bad stuff at bay. There's also hydroguard but I've never used it.

 

Last edited: Aug 23, 2020

O

Okaero

Member

• Aug 23, 2020

• #3

I use 30% at 1ml/3L at res change.

 

Lyfespan

Active member

• Aug 23, 2020

• #4

Substitute said:

I don't know what nutrient you are using but when I contacted General Hydroponics, they told me not to use hydrogen peroxide because it oxidizes important metals in the nutrient solution. I used UC roots to keep and bad stuff at bay. There's also hydroguard but I've never used it.

Click to expand...

excited to see what this UC roots can do in the aero cloner

 

J

John LOQUE

Member

• Aug 23, 2020

• #5

I use Bio Nova nutes...

I've just harvested a remaining bucket, bubbler with quite a lot of air and good air stone, and the least i can say is that i have a root issue...
The plants did not show signs of drawning, they gave me a quite good crop, but the roots are brown, small, don't reach the bottom...That's not normal. I've had far better results in the past, where nights were cold, so the water could cool down in the night at least...
Now i have to deal with warmth day and night.
So air, there is, what to do?

 

Attachments

• 
  IMG_20200823_152322.jpg

  58.5 KB · Views: 44
• 
  IMG_20200823_154907.jpg

  64.1 KB · Views: 41
• 
  IMG_20200823_155040.jpg

  48.6 KB · Views: 40
• 
  IMG_20200823_155256.jpg

  46.6 KB · Views: 39

Mattbho

Active member

• Aug 23, 2020

• #6

GO Soil in summer Save hydro for winter. Or shell out some loot for a chiller. I did dwc in an electric cooler kept the 5g bucket 70f . It sure beat ice packs

 

J

John LOQUE

Member

• Aug 23, 2020

• #7

Okaero said:

I use 30% at 1ml/3L at res change.

Click to expand...

I Europe, 30% is forbidden in the growshops. I Only find 12%. Is it linear?

That's why you have white roots?

 

J

John LOQUE

Member

• Aug 23, 2020

• #8

Substitute said:

I don't know what nutrient you are using but when I contacted General Hydroponics, they told me not to use hydrogen peroxide because it oxidizes important metals in the nutrient solution. I used UC roots to keep and bad stuff at bay. There's also hydroguard but I've never used it.

Click to expand...

It seems that there is incompatibility between H202 and enzymes only...

 

F

fat freddy

• Aug 24, 2020

• #9

12% peroxide = 1ml/2.5l daily, or 2ml/2.5l every second day.
This ratio has worked for me.
A thorough sterilization of equipment etc before being used again or the problem will still persist.
Hope this is helpful, good luck.

 

flylowgethigh

Non-growing Lurker

ICMag Donor

• Aug 24, 2020

• #10

One source is 35% "food grade" H2O2, which I source at "health food" stores. It has to be kept in the dark, and I keep it in the freezer. You can dilute to the 3% the drugstores sell, and avoid the mercury they are rumored to put in.

Use a Q-tip to put some concentrate on a mole. I had one to fizz off! It came back, and won't fizz now for some reason.

 

O

Okaero

Member

• Aug 24, 2020

• #11

John LOQUE said:

I Europe, 30% is forbidden in the growshops. I Only find 12%. Is it linear?

That's why you have white roots?

Click to expand...

I think it is. Try 12% @60ml/ 100L and see what it does for you.

 

J

John LOQUE

Member

• Aug 25, 2020

• #12

fat freddy said:

12% peroxide = 1ml/2.5l daily, or 2ml/2.5l every second day.
This ratio has worked for me.
A thorough sterilization of equipment etc before being used again or the problem will still persist.
Hope this is helpful, good luck.

Click to expand...

Great, i put a little less today to my seedlings (2 weeks) and they are fine. How long does it last, do you know? I've read about 4 days, what do you think? I would have said less...

 

F

fat freddy

• Aug 25, 2020

• #13

Hi John, I believe it only lasts a cpl days.
I use the second daily method, kept roots white and vigorous.
This is a clone using the 2ml/2.5l every second day, 12 days old cutting.

View image in gallery​

 

Last edited by a moderator: Aug 25, 2020

J

John LOQUE

Member

• Aug 28, 2020

• #14

Here are my seedlings roots. I added H2O2 twice and an air stone. New roots have grown but just under the net pot it is rot isn't it?

 

Attachments

• 
  IMG_20200828_125741.jpg

  58.3 KB · Views: 40
• 
  IMG_20200828_125724.jpg

  58.9 KB · Views: 39
• 
  IMG_20200828_125731.jpg

  70 KB · Views: 36

Mr. Stinky

Member

• Dec 13, 2020

• #15

I use35% tech grade. 1 pint in a 500g res, once a week, sometimes twice. It bubbles like pouring soda in a glass if theres any bacteria issues. This stuff will burn the flesh right off your bones so be careful .



If you run h2o2, dont run an airstone, and vice versa. The air stone bubbles the h2o2 right out of solution in a day.

 

O

Okaero

Member

• Dec 23, 2020

• #16

John LOQUE said:

Here are my seedlings roots. I added H2O2 twice and an air stone. New roots have grown but just under the net pot it is rot isn't it?

Click to expand...

The airstone will bubble out h2o2 faster than it goes on its own. Take that out.