Hydroponics

icetech

Well-Known Member
Why try to keep above 5.8?
I used to run 5.6-6.0 and was chasing issues that i couldn't solved.. switched to 6.0-6.5 and never had issues again.. if you look at the ph chart a few nutes drop off big around 5.8.. so why not just go up a little? :)

P.S. there is ZERO downside to goin up .5 of a point.. so why not?
5a20edae779cf5b8849f7ba880e0b4586cccc3bd.jpeg
 

OldMedUser

Well-Known Member
I used to run 5.6-6.0 and was chasing issues that i couldn't solved.. switched to 6.0-6.5 and never had issues again.. if you look at the ph chart a few nutes drop off big around 5.8.. so why not just go up a little? :)

P.S. there is ZERO downside to goin up .5 of a point.. so why not?
View attachment 5023037
That chart is more for soil grows. When I used non pH Perfect nutes my pH would rise over 3 days to about 6.3 and I'd knock it back to 5.5 or so with a few drops of conc. sulphuric acid every 3 days when I did my top-ups. That back and forth made sure that all nutes got some time at optimum and the plants really loved it.

This chart shows best pH ranges for soil and hydro but is lacking in data with the chopped off lines where absorption tapers off rather than begins and ends at a fixed point like the 2nd chart shows.

Nutrient_Chart1.gif

Some nutes are more easily absorbed at a much lower pH too. As long as you are between 5 - 7 the plants can get everything to some extent tho 5.5 is about the lowest I'd want to have a hydro tank stay at for any length of time.

pH-chart.jpg

This is why chasing pH is often a waste of time but some people are real OCD about it when it's not that huge a deal unless you are way out of range.

:peace:
 

icetech

Well-Known Member
That chart is more for soil grows. When I used non pH Perfect nutes my pH would rise over 3 days to about 6.3 and I'd knock it back to 5.5 or so with a few drops of conc. sulphuric acid every 3 days when I did my top-ups. That back and forth made sure that all nutes got some time at optimum and the plants really loved it.

This chart shows best pH ranges for soil and hydro but is lacking in data with the chopped off lines where absorption tapers off rather than begins and ends at a fixed point like the 2nd chart shows.

View attachment 5023119

Some nutes are more easily absorbed at a much lower pH too. As long as you are between 5 - 7 the plants can get everything to some extent tho 5.5 is about the lowest I'd want to have a hydro tank stay at for any length of time.

View attachment 5023121

This is why chasing pH is often a waste of time but some people are real OCD about it when it's not that huge a deal unless you are way out of range.

:peace:
AHH thank you!! i was looking for that second chart and just grabbed what i saw real quick :)
 

ducks13

Well-Known Member
Help. First time DWC, FF neuts, PPM+1100, Ph=6.5, 3 weeks flower. Some fan leaves started turning yellow a few days ago in an area that was exposed to more light from training. Now the yellow ones have wilted and almost the entire plant is drooping, looks like it needs water. Water level is about 1" below the net pot, same. The roots look good. Air temp is 68 to 79. Water temp is 69 to 72 but it did get up to 75 for less than 24 hours a few days ago. 1.jpg2.jpg
 

OldMedUser

Well-Known Member
Sudden drooping like that is generally from root rot cutting off the plants ability to get water. I'd be checking the roots again and looking for any dark areas in them. They don't always go slimy when they go bad. I think depends on the type of organism that is doing the rot and there are many.

Move your light further from the plant or dim it if that's an option and spray plain, preferably RO water, on the leaves getting the undersides good to keep the plant hydrated. If it looks like rot starting you'll need to dose it well with H2O2 or pool shock.

:peace:
 

MrErik

Member
All right! Hydroponics is what I know, and hydroponics is the way I grow! :bigjoint:

This forum will be great, we can discuss anything hydro. No dirtbags here, We haul water!

We can compare the different nutrient salts, and all of the additives. Plus the kinds of soilless media and what irrigation system is best for each. And of course, pH and TDS measuring equipment, feeding and flushing, etc.

And all the while, we'll make fun of those guys hauling big bags of dirt! :blsmoke:


I can't think of any questions right now, what do YOU want to know?

:mrgreen:
What’s the easiest way to clone?? I have purple punch and agent orange and wedding cake that I’d love to keep cloning. Just tried the rapid rooters in a dome with heat pad?? What should my nutes be???
 

MrErik

Member
Sudden drooping like that is generally from root rot cutting off the plants ability to get water. I'd be checking the roots again and looking for any dark areas in them. They don't always go slimy when they go bad. I think depends on the type of organism that is doing the rot and there are many.

Move your light further from the plant or dim it if that's an option and spray plain, preferably RO water, on the leaves getting the undersides good to keep the plant hydrated. If it looks like rot starting you'll need to dose it well with H2O2 or pool shock.

:peace:
Using pool shock?? Isn’t it I high dose of hydrogen peroxide?? And what’s the ratio please tell me. Thanks ☺
 

PJ Diaz

Well-Known Member
What’s the easiest way to clone?? I have purple punch and agent orange and wedding cake that I’d love to keep cloning. Just tried the rapid rooters in a dome with heat pad?? What should my nutes be???
No nutes for cloning.
Using pool shock?? Isn’t it I high dose of hydrogen peroxide?? And what’s the ratio please tell me. Thanks ☺
Pool shock is chlorine. I'm sure if you search you can find a whole thread on it here with all the answers about Pool Shock and cloning.
 

OldMedUser

Well-Known Member
Using pool shock?? Isn’t it I high dose of hydrogen peroxide?? And what’s the ratio please tell me. Thanks ☺
I've only used 35% food grade peroxide so can't help you with the pool shock. Chlorine is unhealthy for plants or humans. 0.5ml/L twice a week for maintenance but 4ml/L daily for a few days to fight root rot. Then every 2nd day for a few more doses until you see healthy roots taking over. Remove any dead roots from the water or root balls before starting treatment. Generally best to do a nute change at 50 - 75% of what you had for nutes and no organics in there like beneficials or amino acids or the peroxide will be wasted destroying that stuff too.

Lots of aeration too!

:peace:
 

MrErik

Member
I've only used 35% food grade peroxide so can't help you with the pool shock. Chlorine is unhealthy for plants or humans. 0.5ml/L twice a week for maintenance but 4ml/L daily for a few days to fight root rot. Then every 2nd day for a few more doses until you see healthy roots taking over. Remove any dead roots from the water or root balls before starting treatment. Generally best to do a nute change at 50 - 75% of what you had for nutes and no organics in there like beneficials or amino acids or the peroxide will be wasted destroying that stuff too.

Lots of aeration too!

:peace:
Thank you very much. But I’ve also heard not to use salt based nutes??
 

OldMedUser

Well-Known Member
I'm of that thinking. Anything with sodium is a salt. Starts blocking nute uptake. Most chems I use are hydroxides. Careful when u play with them.
There are thousands of salts that have no sodium. Hydroxides are alkaline salts where sodium hydroxide, (NaOH), is one and potassium hydroxide, (KOH) is another of many in the hydroxide family. All the minerals in most peoples tap water are in the form of salts. What about Epsom Salts, (Magnesium chloride or MgCl)?

In organic growing you need a good bioherd to convert the organic matter into something the plants can eat which are, drum roll please . . . salts.

Retired chemist here that grew his first buds in 1978.

:peace:
 
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OldMedUser

Well-Known Member
Want site some sources for this info? You know full well this is not accurate.....
Look it up yourself and find out you Failedmore.

Chlorine is a known carcinogen for one thing but is still used to make water safe to drink as in tiny doses it saves many more lives than it harms.

Just like many drugs your doctor may prescribe can have side effects ranging up to and including death the risk is accessed against the risks involved with the disease it treats and if the disease risk is higher you get the drug.

Like chemo drugs. Deadly poisons most of them but hopefully they kill the cancer before they kill the patient.
 

OldMedUser

Well-Known Member
Sodium hydroxide is not table salt. sodium chloride is.
FIFY. My bad. Still on my first coffee and not quite awake yet.

Pink Himalayan sea salt has 94 mineral salts in it and we use that on our table along with good old iodized sodium chloride.

The point is you were wrong in saying that salts must have sodium and that the rest of the nutes are hydroxides.
 

Failmore

Well-Known Member
Look it up yourself and find out you Failedmore.

Chlorine is a known carcinogen for one thing but is still used to make water safe to drink as in tiny doses it saves many more lives than it harms.

Just like many drugs your doctor may prescribe can have side effects ranging up to and including death the risk is accessed against the risks involved with the disease it treats and if the disease risk is higher you get the drug.

Like chemo drugs. Deadly poisons most of them but hopefully they kill the cancer before they kill the patient.
Everything is a carcinogen when taken in strong enough doses. Do you know why every human thinks fake sugar is a carcinogen...because they jammed 1000000% the dose in mice. Now people say fake sugar gives you cancer.

Now here you are saying if I jam 100000% the dosage in my plants ill get cancer. Who is failing here?

Again...ill ask politely because it seems you are not capable of understanding your errors.

Site your sources for your information that using chlorine in growing is bad....saying...do your own research is maga level dumb. If you truly are a chemist you are smarter than that. Show me....

Don't just say things because they make you feel good inside.
 

OldMedUser

Well-Known Member
Everything is a carcinogen when taken in strong enough doses. Do you know why every human thinks fake sugar is a carcinogen...because they jammed 1000000% the dose in mice. Now people say fake sugar gives you cancer.

Now here you are saying if I jam 100000% the dosage in my plants ill get cancer. Who is failing here?

Again...ill ask politely because it seems you are not capable of understanding your errors.

Site your sources for your information that using chlorine in growing is bad....saying...do your own research is maga level dumb. If you truly are a chemist you are smarter than that. Show me....

Don't just say things because they make you feel good inside.
I didn't say anything about using chlorine is particularly bad for the plants but less chlorine in any environment is a good thing so I use peroxide instead of chlorine. Nothing but oxygen and water. It takes a lot less than 100000% of chlorine to be harmful to living things.

Everything is a carcinogen when taken in strong enough doses
Patently false. Too much pure water can kill you but it won't give you cancer for one.

You don't seem to understand much at all and your reading comprehension skills sure need some work.

Most fake sugars are not good for you so like high fructose corn syrup I just don't buy anything that has either. You do you tho.

Thanks for playing.
 
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