Silly Question About Bennies

[redlife215]

That link should kill this argument. Wonder what @PharmHand s pile of info looked like. And why would u not post info to vack up ur claim on a forum that is supposes to be about kmowledge and facts?

 

[redlife215]

Great article @Shawnery

 

[G gnome]

That link should kill this argument. Wonder what @PharmHand s pile of info looked like. And why would u not post info to vack up ur claim on a forum that is supposes to be about kmowledge and facts?

Too bad the one u posted got deleted. Can u post again pls

 

[redlife215]

Yeah man i was wondering why it got deleted, i think tge link i posted was more in reference to soil not dwc but def gaye getting actual real facts deleted but i prob said some slick shit u didnt like

 

[jumpincactus]

ucdwc, if i drop water temp to 66 does that temp kill hydroguard and recharge?

not sure, I typically run from 68 F There is discussion that too low of temps can inhibit uptake.

Whats your reasoning for dropping to 66 d ??

http://simplyhydro.com/nutrient_temp.htm

 

[G gnome]

Great link

https://letsgrowild.wordpress.com/2...read-for-any-water-culture-growers-out-there/

Thx shawnery. I am posting a screen shot of the pertinent portion of the article u linked that also happens to agree w my argument

 

[pdasterly]

my chiller goes to 66-68, i know the cold keeps the bacteria low, but does that include the good stuff as well.
if i set low is there any benefit to still use hydroguard

not sure, I typically run from 68-70 tops. There is discussion that too low of temps can inhibit uptake.

Whats your reasoning for dropping to 66 d ??

 

[G gnome]

Yeah man i was wondering why it got deleted, i think tge link i posted was more in reference to soil not dwc but def gaye getting actual real facts deleted but i prob said some slick shit u didnt like

For the record, i did not delete ur post. I thought it was informative. I wudda just edited out the slick shit haha

 

[G gnome]

my chiller goes to 66-68, i know the cold keeps the bacteria low, but does that include the good stuff as well.
if i set low is there any benefit to still use hydroguard

The lower temps increases the waters capacity to hold dissolved o2.

 

[redlife215]

U can tell if ur waters too cokd ur roots wont have as many root hairs and will jus look like noodles

 

[jumpincactus]

my chiller goes to 66-68, i know the cold keeps the bacteria low, but does that include the good stuff as well.
if i set low is there any benefit to still use hydroguard

There are so many plant species and regions out there with temps listed for all plants in general. I would suggest you try 66-68 d F and if you do your due diligence with husbandry of your rez and system at those temps you will not have any issues with pathogens. Like I said I ran my system at 68 for years with a nute change every 21 days and never had a issue.

 

[jumpincactus]

@gnome is correct in saying the cooler the temps the more DO the water will carry, the warmer then less DO

But there is a point at which your roots wont like the temps. Whats that point?? not sure

 

[jumpincactus]

Most growers are familiar with the need to have some form of aeration in their nutrient solution - whether they be in a recirculation or a media based system. In NFT systems, this is often accomplished with the use of an air pump or by allowing the nutrient to fall back into the reservoir, thus introducing oxygen. However, the effect of temperature of the solution on the dissolved oxygen levels and on root respiration rates also needs to be taken into account. As the temperature of your nutrient solution increases, the ability of that solution to 'hold' dissolved oxygen decreases. For example, the oxygen content of a fully aerated solution at 10°C (50° F) is about 13ppm, but as the solution warms up to 20° C (68° F) the ability of the liquid to 'hold' oxygen drops to 9 - 10ppm, by the time the solution has reached 30° C (86° F), then it's only 7ppm.

While this may not seem like a huge drop in the amount of dissolved oxygen, we have to remember that as the temperature of the root system warms, the rate of respiration of the root tissue also increases and more oxygen is required by the plant. For example, the respiration rate of the roots will double for each 10°C rise in temperature up to 30°C (86° F). So the situation can develop where the solution temperature increases from 20° - 30° C (68° - 86° F) during the day, with a mature crop and a large root system, then the requirement for oxygen will double while the oxygen carrying capacity of the solution will drop by over 25%. This means that the dissolved oxygen in solution will be much more rapidly depleted and the plants can suffer from oxygen starvation for a period of time.

http://simplyhydro.com/nutrient_temp.htm

 

[G gnome]

Most growers are familiar with the need to have some form of aeration in their nutrient solution - whether they be in a recirculation or a media based system. In NFT systems, this is often accomplished with the use of an air pump or by allowing the nutrient to fall back into the reservoir, thus introducing oxygen. However, the effect of temperature of the solution on the dissolved oxygen levels and on root respiration rates also needs to be taken into account. As the temperature of your nutrient solution increases, the ability of that solution to 'hold' dissolved oxygen decreases. For example, the oxygen content of a fully aerated solution at 10°C (50° F) is about 13ppm, but as the solution warms up to 20° C (68° F) the ability of the liquid to 'hold' oxygen drops to 9 - 10ppm, by the time the solution has reached 30° C (86° F), then it's only 7ppm.

While this may not seem like a huge drop in the amount of dissolved oxygen, we have to remember that as the temperature of the root system warms, the rate of respiration of the root tissue also increases and more oxygen is required by the plant. For example, the respiration rate of the roots will double for each 10°C rise in temperature up to 30°C (86° F). So the situation can develop where the solution temperature increases from 20° - 30° C (68° - 86° F) during the day, with a mature crop and a large root system, then the requirement for oxygen will double while the oxygen carrying capacity of the solution will drop by over 25%. This means that the dissolved oxygen in solution will be much more rapidly depleted and the plants can suffer from oxygen starvation for a period of time.

http://simplyhydro.com/nutrient_temp.htm

So if im understanding u correctly....what ur saying is "gnome is absolutely right "?

 

[jumpincactus]

One of the keys to avoid Pythium along with temps is having a strong healthy plant that hasn't been stressed a lot. Pythium is an opportunist and will colonize a sick, stressed plant easier than a healthy robust plant with a strong rootzone. Hope this helps.

 

[jumpincactus]

So if im understanding u correctly....what ur saying is "gnome is absolutely right "?

yes sir. I know we banter back and forth but at the end of the day you in my book are a very knowledgeable grower. There ya have it, I said it lol

 

[G gnome]

yes sir. I know we banter back and forth but at the end of the day you in my book are a very knowledgeable grower. There ya have it, I said it lol

I love you

 

[jumpincactus]

Who loves ya Dadddy!!!!!

 

[jumpincactus]

I love you

Awwww shucks Gomer :p

 

[OldManRiver]

You guys need to get a room. ;-)