Grow space too hot for hydro 79.

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Smokenpassout

Well-Known Member
I have a small tent set up for two 5 gallon dwc. Passive intake is near the bottom, and outake through 170 cfm fan at the top. Temps is 79 and 63% humidity. I assume the humidity might get much higher when I add 10 gallons of bubbling water? Do you think the water will get too warm at these temps? I have no chiller, or ac unit. I may have to use frozen water bottles to keep resevoir temps down. What are the max temps to run hydro without CO2? My lights are LED so they wont add too much more heat.
 
Vumar

Vumar

Well-Known Member
Ambient Air temp of 79 is okay
Your hydro water temp is recommended 65-68 degrees Fahrenheit. Anything over 75 degrees and you will run into issues like pathogens or unhealthy roots.
 
S

Smokenpassout

Well-Known Member
Wow, is there anything I can do to promote better roots health in higher temperatures? I was thinking of H202 treatments with water change. Maybe hudroguard? Frozen bottles seem like such a hassle lol.
 
daloudpack

daloudpack

Well-Known Member
mines around the same temp with my fans off when is it safe to turn them on my clones just got newgrowth and i have new clones still tryin to root. my grow room is 5x3 1/2 x 5 1/2 tall i have 2 4inch duct fans they are 90cfm
 
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Vumar

Vumar

Well-Known Member
Frozen water bottles don't work as flawlessly as they seem.... /facepalm

I always add beneficial bacteria to my res/water/hydro.

edit; via hydroguard atm, works well price aside.
 
SweetHayz

SweetHayz

Well-Known Member
@Smokenpassout I'm currently reading my story as a begginer ^^

If you grow in high temps don't grow in hydro!!! Go for soil instead with bunch of perlite in it.
I was running my first hydro on 28-31 degree and I was cooling it down with frozen water bottles.
Fail! Total Fail! H2O2 doesn't do shit either!

I managed to finish it. But yields were nothing compared to my soil plants.
A lot of trouble for low yields. ://
 
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nameno

nameno

Well-Known Member
@smokenpassout,I read this and did not believe it until I tried it,you may want to try it.
Wrap your bucket in a lot of newspaper & then a coat of tinfoil.Dropped mine just right.
I don't think I will ever quit the Z stuff,that's the whitest roots I ever had & I run hydroguard
That's the way I will run it until I have trouble.It cost a little bit but not nearly as much as trouble cost. The newspaper probably was all I needed but I did not want chance it.
Great Grows & Heavy yields to Ya!
 
SweetHayz

SweetHayz

Well-Known Member
@nameno how much does it drop the temperature? I'm willing to give it a try. Lets say for example my room temps are about 31 C. How much would my res be if i cover it with newspaper and foil?

Now let me put things straight. In DWC you need air pump for the bubbles. Air pump is taking air at the room temperature and insert it in you res. That's the main factor that heats up the water.

Now, if you have a frozen bottle within your res and then you use the technique said to isolate the cold withing the res. It could work.

But. There is one "but" me personally would never fit the bottle in the res. Giving direct access of the roots to the cold surface of the frozen bottle, will give your plants cold stress.

Usually the frozen bottle in being places in external container filled with water which then cools your DWC res.
 
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DukeO

DukeO

Member
SweetHayz said:
@nameno how much does it drop the temperature? I'm willing to give it a try. Lets say for example my room temps are about 31 C. How much would my res be if i cover it with newspaper and foil?

Now let me put things straight. In DWC you need air pump for the bubbles. Air pump is taking air at the room temperature and insert it in you res. That's the main factor that heats up the water.

Now, if you have a frozen bottle within your res and then you use the technique said to isolate the cold withing the res. It could work.

But. There is one "but" me personally would never fit the bottle in the res. Giving direct access of the roots to the cold surface of the frozen bottle, will give your plants cold stress.

Usually the frozen bottle in being places in external container filled with water which then cools your DWC res.
Click to expand...

Most rooms will have a lower temp near the floor. The same place most pumps are. I run what I call a hot DWC setup. 78-80f.

I tried just about ever way that you will read on any forum to do it and not get root rot. Some on here will say don't do it or it will not work.

But like "nameno" I found z7 water treatment. I use GH 3part with z7 and I have spotless buckets with no root rot.

I now never use bleach N2O2 or anything like that in or to clean my buckets or cloner. There is no need for it with z7.

I have found no need for teas or frozen water bottles either. Would I like to run a lower temp. For sure.

But that is what I have to work with in the summer here.
 
SweetHayz

SweetHayz

Well-Known Member
DukeO said:
Most rooms will have a lower temp near the floor. The same place most pumps are. I run what I call a hot DWC setup. 78-80f.

I tried just about ever way that you will read on any forum to do it and not get root rot. Some on here will say don't do it or it will not work.

But like "nameno" I found z7 water treatment. I use GH 3part with z7 and I have spotless buckets with no root rot.

I now never use bleach N2O2 or anything like that in or to clean my buckets or cloner. There is no need for it with z7.

I have found no need for teas or frozen water bottles either. Would I like to run a lower temp. For sure.

But that is what I have to work with in the summer here.
Click to expand...
No body has said anything about root rot. What I am talking about is quality. And if you don't give the proper temperature, you better grow soil as you are gonna get better results.
I am running hydro in hot environment and my perlite/soil plants yield twice the size of dwc.

Running dwc in hot environment equals to lack of oxygen equals to low quality plants.
Growing in medium gives you the ability to let is dry and give a good boost of oxygen.
 
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DukeO

DukeO

Member
"What i am talking about it quality" LoL Maybe it has to do with the way your running your DWC or with what your not putting in it.

Sorry I can can not send pics because of where I live. I moved from HPS and dirt to LED and DWC. You can keep the dirt as far as I am concerned.
 
SweetHayz

SweetHayz

Well-Known Member
Buddy. Let me quote it again.

SweetHayz said:
Running dwc in hot environment equals to lack of oxygen equals to low quality plants.
Growing in medium gives you the ability to let is dry and give a good boost of oxygen.
Click to expand...
If you believe with hot environment you can outgrow medium with dwc you are most likely satisfied with low quality plants.
 
DukeO

DukeO

Member
SweetHayz said:
Buddy. Let me quote it again.



If you believe with hot environment you can outgrow medium with dwc you are most likely satisfied with low quality plants.
Click to expand...
I understand you failed at it. But that does not mean everyone else has failed too. You can keep your dirt. I have been there and done that.
 
SweetHayz

SweetHayz

Well-Known Member
@DukeO
No I haven't failed at it. I harvest with no deficiency of whatsoever. And it yielded much less than soil.
Meanwhile let me enlighten you I run dwc with water-chiller and I can tell you the difference.
You stick you cocky face it your arse and dig some information about:
DO =(P-p) × 0.678
35 + t
And yet if you don't understand the formula is about dissolved oxygen depending on your water temperature and your water pressure.
 
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SweetHayz

SweetHayz

Well-Known Member
Specific run i'm talking about:
Soil/Perlite on the left DWC on the right (both planted in the same day). Clone on the background. 100w led 1month veg.
Please master! Show me the deficiencies. I so fail at it! (Yes my wardrobe is my veg room and what?)

I give you a simple example a boiling water is boiling because it releases O2 molecule.
Oil on the other hand can not boil because it doesn't have oxygen in the formulation.
Oxygen is critical to plant health. The lesser the oxygen the slower the growth.

hakunaMatata.jpg
 
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Yodaweed

Yodaweed

Well-Known Member
Place your res outside your grow tent. I suggest you grow organic you wont have these problems and have much higher quality weed. No need to waste money on fancy water chillers or over priced watered down and synthetic nutrient lines, make your own mix and layer that shit, water with R/O or dechlorinated water.So much better than cancer causing hydro nutrients.
 
DukeO

DukeO

Member
There is no doubt that I would rather be running a lower temp. But I learned how to run hotter in the summer. This thread is about growing at 79f.

If all you can say you failed so everyone else will too and they should only use dirt.

Then all you are doing is trolling not helping.

Then you really don't know what your talking about.

Yes I know all about DO.

z7 lets me run hotter. My guess would be for the same reason you have to cut the nutes down while running it. It cleans and opens the pours of the roots and lets them bring more of everything in.

Like I said! I am answering the treads question about how to run DWC hotter. I am not saying it is better to run hot.

What are you doing?
 
Yodaweed

Yodaweed

Well-Known Member
DukeO said:
There is no doubt that I would rather be running a lower temp. But I learned how to run hotter in the summer. This thread is about growing at 79f.

If all you can say you failed so everyone else will too and they should only use dirt.

Then all you are doing is trolling not helping.

Then you really don't know what your talking about.

Yes I know all about DO.

z7 lets me run hotter. My guess would be for the same reason you have to cut the nutes down while running it. It cleans and opens the pours of the roots and lets them bring more of everything in.

Like I said! I am answering the treads question about how to run DWC hotter. I am not saying it is better to run hot.

What are you doing?
Click to expand...
You're just dumping un-needed nutrients and chemicals into your res by doing that, place said res in a cooler room and run some tubing to it. Much simpler and less money/ cancer causing agents involved. Not to mention funding the hydro store , you hydro guys are really clueless.
 
SweetHayz

SweetHayz

Well-Known Member
"z7, hydroguard, aquashield" and all those would work well keep the pythium a side.
Its not about if you gonna fail at growing it. Its about the quality of the plant.
And don't misunderstand me with the quality of the product.

If you grow at hot environment grow in medium, even solo perlite or coco coir.
Would give you amazing results if you let them dry.

DWC would give you good results only if you have everything at optimal.

Here is a happy soil plant at ~31c room:
LoraDeMars21.jpg
 
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SweetHayz

SweetHayz

Well-Known Member
Yodaweed said:
You're just dumping un-needed nutrients and chemicals into your res by doing that, place said res in a cooler room and run some tubing to it. Much simpler and less money/ cancer causing agents involved. Not to mention funding the hydro store , you hydro guys are really clueless.
Click to expand...
The foods we eat on everyday basis has many cancer causing agents involved. :)
All the packaged things are full of stabilizers, our tomatoes from the supermatket being grown with fertilizers, the meat we eat full of hormones.
I've done once fully organic run. The smoke were amazing but the quantity very low.
Since where I live i'm somehow limited per plants I can grow. I choose to use nutes.
On the other hand I don't feed the hydrostore. I find a chemical source and mix my own nutes.
It all comes down to proper curing.
 
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