UV light in hydroponics

[Jtotheroc]

Hello fellow growers
I'm going to be setting up a DWC with 2- 5g pails. Both are going to be on their own circulation. Has anybody used UV light for sterilization either in the pail itself with the plant or inline on the outside??

 

[Len Goodman]

Check out the journal. It’s soil but a plant is a plant.

 

[Jtotheroc]

The journal?? I'm a newbie here lol

 

[Len Goodman]

Under neath my post is grow journal day 8 in green

 

[Jtotheroc]

 

[multiVortex]

Sterilization of a reservoir with UV is an interesting concept. Having used similar for aquatic hobbies, it seems like it could be decent in theory. It would have to be in a reservoir (no light on the roots), and I'm not sure to the extent it would influence temperature in a hydroponic system. It may be negligible, it may be a few degrees.

It wouldn't be a stand-alone option though, IMO. It would do find against pathogens and such, but probably not so much against bacteria within the root structure.


Now on the topside: yes. Both UVA and UVB can be beneficial in growing. You need to be very careful with UVB, but you will find most grow lighting spectrums will have inclusion down into the UVA spectrum range.

 

[Len Goodman]

Sterilization of a reservoir with UV is an interesting concept. Having used similar for aquatic hobbies, it seems like it could be decent in theory. It would have to be in a reservoir (no light on the roots), and I'm not sure to the extent it would influence temperature in a hydroponic system. It may be negligible, it may be a few degrees.

It wouldn't be a stand-alone option though, IMO. It would do find against pathogens and such, but probably not so much against bacteria within the root structure.


Now on the topside: yes. Both UVA and UVB can be beneficial in growing. You need to be very careful with UVB, but you will find most grow lighting spectrums will have inclusion down into the UVA spectrum range.

In the soil I applied bacillus to counter act all that. UVB was monitored very closely. I don’t think I killed much of the bacillus as the plant just thrived through the whole experiment. Then I topped anther with butter and it topped at 13 days old and never stopped growing. I found a new method for me if anything.

 

[Len Goodman]

I’m learning to grow through books and experiments. I feel the knowledge i have gained by getting reactions my self is making a better grower.

 

[Len Goodman]

I feel I’m developing new methods through experimentation.

 

[Jtotheroc]

Sterilization of a reservoir with UV is an interesting concept. Having used similar for aquatic hobbies, it seems like it could be decent in theory. It would have to be in a reservoir (no light on the roots), and I'm not sure to the extent it would influence temperature in a hydroponic system. It may be negligible, it may be a few degrees.

It wouldn't be a stand-alone option though, IMO. It would do find against pathogens and such, but probably not so much against bacteria within the root structure.


Now on the topside: yes. Both UVA and UVB can be beneficial in growing. You need to be very careful with UVB, but you will find most grow lighting spectrums will have inclusion down into the UVA spectrum range.

Hey thanks for that tid bit. I was reading that UV light is both beneficial and possibly negative (no further studies) to both good and bad bacterial cultures. I'm going to be running a small water fountain pump (350/lph) through both a computer cooling unit(radiator with a fan) and a UV light all controlled by a temperature controller. So in theory the UV light will only power on when the temperature drops below the set limit so that should keep the heat at bay unless it's running more than in hoping

 

[Len Goodman]

Hey thanks for that tid bit. I was reading that UV light is both beneficial and possibly negative (no further studies) to both good and bad bacterial cultures. I'm going to be running a small water fountain pump (350/lph) through both a computer cooling unit(radiator with a fan) and a UV light all controlled by a temperature controller. So in theory the UV light will only power on when the temperature drops below the set limit so that should keep the heat at bay unless it's running more than in hoping

If it’s UVB it’s the exposure you want to be careful of, small doses, that hour treatment brought it to near cell degeneration. I wasn’t going to expose again until flower, but even then it was gonna a 15 minute burst 1 x a week.

 

[Len Goodman]

I’m just treating the plant like a computer programming it to know the light exists and it needs defense

 

[Jtotheroc]

I guess moderation it the key to everything. Ya maybe I'll just hook the light up separately and cycle it manually. Just like a baby with there immune system. Build it up gradually

 

[Jtotheroc]

I feel I’m developing new methods through experimentation.

The only way we learn is to make mistakes

 

[Remystemple]

In the soil I applied bacillus to counter act all that. UVB was monitored very closely. I don’t think I killed much of the bacillus as the plant just thrived through the whole experiment. Then I topped anther with butter and it topped at 13 days old and never stopped growing. I found a new method for me if anything.

so this is the second time i've read the phrase " topped with butter" the first time i just assumed it was some kind of spelling mistake and my mouth watered a bit. but now i'm gonna need someone to explain wtf this means

 

[Len Goodman]

I guess moderation it the key to everything. Ya maybe I'll just hook the light up separately and cycle it manually. Just like a baby with there immune system. Build it up gradually

No don’t build up it will cell degen. I would stick with 30 minutes a week monitored. As a nod pops expose for 30 but never back to back.

 

[Len Goodman]

No don’t build up it will cell degen. I would stick with 30 minutes a week monitored. As a nod pops expose for 30 but never back to back.

Stacked was 13 days old and felt all exposure with in 3 days it had a sun tan for sure.

 

[Len Goodman]

so this is the second time i've read the phrase " topped with butter" the first time i just assumed it was some kind of spelling mistake and my mouth watered a bit. but now i'm gonna need someone to explain wtf this means

I topped a plant with butter. Based on a theory after working with the dirt. If you low stress. Make the plan choose
To top itself which it did, it would go into dormancy, which it didn’t, not wasting your preacous light. Also I can now make
Sculptors out
If the things. I know it’s crazy sounding. But IT WORKED

 

[Len Goodman]

Not go into dormancy

 

[Len Goodman]

It’s all in my journal stacked was 13 days old and topped. Day 16 still pushing.