Shwagbag
Well-Known Member
True that, finishing a good ol fashioned NL right now and she is marvelous.
It's A Fuct World
- Thread starter Al B. Fuct
- Start date
trichome fiend
Well-Known Member
....
I'm highly interested, please do.please do so sooner than later, i am very interested to see this
Highhopes99
Active Member
Thanks for the link I would love to find some of that big chunky stuff. Looks like it would provide alot more air and stay in the pots well .
Are you using any h202 ? I know al uses 1 ml per liter of 50% grade. But I can only get 29% so I would have to use 1.7 ml per liter Which would be over 255ml every 3 days! Over 1 liter every 2 weeks for 1 res. That seems a bit much.
trichome fiend
Well-Known Member
....yeap, I use h2o2....I use the 30%, and I typically only add a ml per gallon. I try to stay focused on res temps and bubbles in the res also.
al i got a question about how h202 works since your a scientist. what would happen if i just dumped 6.9 ml of 29% h202 in a gallon of water but i didnt use the water to grow with. to be more clear after i dump it in i know the oxygen level will be higher. will the oxygen level in the water be higher permanently and never leave because its liquid oxygen and it isnt being givin to the plants and sucked up by the roots? if its possible for the extra oxygen from the h202 to leave the water without being sucked up by the roots then how long will it last until its totally gone and can you explain scientifically how its able to leave since i think it stays liquid oxygen? im just trying to figure out if the reason you have to give h202 to plants every 3-4 days is because the plants are using it all up or if it breaks down and disappears even when plants arent using it up. thanks
Highhopes99
Active Member
you have a chiller for the res? what temp do you keep it at?
potpimp can you be more clear? are you saying the extra oxygen it adds never leaves water unless roots suck it up? if not how long till it leaves? i dont have an oxygen meter to run the test
hellraizer30
Rebel From The North
H202 disapates by the third day of being put in the water
trichome fiend
Well-Known Member
...I don't have a chiller, my res sits on a basement floor and my temps always stay below 70 in the res.......the main reason for the H2O2 is to kill pathogens....I keep the light out of my res, I add plenty of bubbles, and H2O2....no brown slim. H2o2 disapates quickly and must be added every 3-4 days just as HR30 said....also, as Potpimp mentioned, the oxygen moecules will attach to the pathogens (killing them)...Al has gone pretty deep into detail about H2O2 somewhere in one of his threads, if I find the time, I'll quote his words....
hellraizer, i think you and potpimp are giving two different answers on this subject. potpimp seems to be saying it never leaves and your saying it does. id like al to clear this up for us. thanks for the responses
Highhopes99
Active Member
its
thanks, I am quite aware of Al's thoughts on h202 and why it's used. I just like hearing what others grower find helpful in there res.
hornedfrog2000
Well-Known Member
its doesn't ever "leave" it just changes back to water, sort of the same thing that ozone does with bad smells. It just gets used up, and needs to be replaced.
when i say leave im talking about the extra oxygen it adds. lets say sitting water has an oxygen level of 5.5 ppm and when you add h202 it then becomes 8.5 ppm. if roots arent taking up the water will it permanently stay at 8.5 oxygen level or does it return to 5.5 no mater what?
TruenoAE86coupe
Moderator
Water is H2O, so it is 33% oxygen always. (333,333 ppm).
Hydrogen Peroxide is H2O2, so it is 50% oxygen (500,000 ppm).
So by adding a little h202 you are not really adding much oxygen at all. You are adding hydrogen peroxide which works to kill pathogens, not increase the level of oxygen in the water.
The reason for using H2O2 has very little if nothing to do with oxygen at all, simply the effects of adding a sterilizing agent.
Hydrogen Peroxide is H2O2, so it is 50% oxygen (500,000 ppm).
So by adding a little h202 you are not really adding much oxygen at all. You are adding hydrogen peroxide which works to kill pathogens, not increase the level of oxygen in the water.
The reason for using H2O2 has very little if nothing to do with oxygen at all, simply the effects of adding a sterilizing agent.
thats false Trueno. my friend has an oxygen meter and sitting water comes up as 5.4 approx ppm and his bucket system water with expensive airstones and constantly moving water comes up as 6.7 ppm. he did a test and added h202 to his system and the meter read 8.5 ppm afterward. from his readings the h202 does a tremendous job at adding oxygen. the problem is my friend wants to argue with me and he doesnt want to run the type of test i want him to run. i told him to dump h202 in water that has nothing to do with growing and see if it still reads 8.5 like 2 weeks later thats what im trying to figure out. when the h202 is in his system at 10 ml a gal (29%) the meter slowly goes down as the plants use up the oxygen and by his calculations its totally gone in 24-36 hours
hornedfrog2000
Well-Known Member
you just want to argue?
i have no idea what your talkin about? were having a conversation and a couple people in this thread are saying 2 different things so im just trying to get to the bottom of it. its all good il wait for al
just to add in your last statement you werent talking about oxygen itself your were talking about the actual h202. this question is about the oxygen. heres your quote
"its doesn't ever "leave" it just changes back to water, sort of the same thing that ozone does with bad smells. It just gets used up, and needs to be replaced."
i dont like arguing with people
hornedfrog2000
Well-Known Member
Why ask if you're just going to debate about it. If you know how to test it, and what you're doing then have at it. I don't get why you would ask people how something is if you already have the answers.