250w HPS Club And Help Guide

Hettyman

Well-Known Member
im gonna post some pics up in a bit as i now have plants rather than seedlings,

thanks for the info stoneslacker, im planning on a scrog this time round so its good to know, im not doing hempy im in straight coco. im using lucas formula but im gonna switch to dutch pro for flower by recommendation of hettyman i think. lol

i also have a clone from my last white widow to mess around with. so far i have topped it 6 times and im probably gonna keep going till my main plants are ready to flower. its only in a 15cm pot so its almost rootbound already. ill get pics up in a bit once my lazy missus gets out of bed so i can take pics without waking her lol
It was advice only, not used Dut Pro myself, but another customer came into the hydro shop this week and was raving about it.

Quiet like you, I'm about to top 3 plants to buy some time while my flower room makes some space, which will be at least 3 weeks. These babies should really be flipped now, but hoping the shock from training will slow them down enough, and help final yield. Been thinking a lot about Screening, but will wait untill I switch from perpetual grow to set grows.

Will you now be changing you name to BrettScrog??

And I find cold, wet flannels are great for getting lazy girlfriends up, depends on how big your balls are...and if you are plannig on using them in the next few weeks :)
 

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Hettyman

Well-Known Member
My outdoor plants - they couldn't get a huge amount of natural sun due to there posiiton out of sight in my conservatory (and we had very little since light naturally turned 12/12), and were tiny clones to start. Only gonna get about 3-5g dry off each, but it already sweet tastey and pretty strong after 24 hours drying. And that'll last till my tent grow is ready in a few weeks :)
 

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brettsog

Well-Known Member
ok well as promised. heres a couple pics

if anyone can see the strange spotting on the leaves an insight would be good, im hoping its just the lack of cal/mag which im trying to counter with epsom salts but i might just go see if i can buy calmag from somewhere.

in fact if im gonna switch from hydro to coco specific nutes i wont need the calmag will i??? if anyone knows.
 

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giggles26

Well-Known Member
I would pull cool air from outside and vent it back out of the tent, or at the least vent it to your exhaust. Dont let it dump the hot air in the tent.
That's what I was thinking but I'm trying to figure out how to vent the other end of the cool tube though cuz my tent is only 3'x2'5' and with the cool tube in there I don't think there is enough room on both sides to run flexible ducting without having to tight of a turn...what are your guys thoughts on it? I would like to go from inline fan pulling in from outside and then through the cool tube out the other end of the cool tube and back out the tent but I'm working on tight dimensions. If someone could please help me figure out how to keep my tent cool I would appreciate the help. Can post pics of setup if need. Thanks guys!
 

brettsog

Well-Known Member
i see a lot of people mount the fan on the outside of the tent. so it pulls air from the tent across the light and out of the tent only one piece of ducting needed.
 

giggles26

Well-Known Member
i see a lot of people mount the fan on the outside of the tent. so it pulls air from the tent across the light and out of the tent only one piece of ducting needed.
Ok well so could I leave the one end of the cool tube open and then run ducting off the opposite end and have the inline fan pulling air out across the tube? cuz I don't think I can get ducting on the other end of the cool tube cuz there is only like 3 inches from the end of the cool tube to the tent.
 

brettsog

Well-Known Member
crude.jpg

its very crude but thats what i meant. i think you got it.


also i have seen people mount the light diagonally in a tent to help make room for the ducting. if you set it up in the way i suggested you will have a decent amount of fresh air intake as well as long as you leave it as a passive intake.
 

giggles26

Well-Known Member
View attachment 2379761

its very crude but thats what i meant. i think you got it.


also i have seen people mount the light diagonally in a tent to help make room for the ducting. if you set it up in the way i suggested you will have a decent amount of fresh air intake as well as long as you leave it as a passive intake.
Ok cool. If I have the inline fan sucking air across the tube/bulb can I put like a vent cap on the other end or is it not necessary?
 

brettsog

Well-Known Member
you can do whatever you think is best, i haven't used this setup myself but have seen it used by a few growers and they never cap the other end as it restricts the airflow, more airflow means more air exchange which is good for your plants i.e the temps, co2 and humidity.
 

giggles26

Well-Known Member
Thanks much bro! My 2 girls are loving the HPS over my old cfls. There are new pistils thrown everyday. I'm so excited to see what happens.
 

Hettyman

Well-Known Member
Thanks much bro! My 2 girls are loving the HPS over my old cfls. There are new pistils thrown everyday. I'm so excited to see what happens.
I'm 4 weeks into my first flower with HPS over CFL, and it is a wonderous thing... why did we wait??
 

giggles26

Well-Known Member
I'm 4 weeks into my first flower with HPS over CFL, and it is a wonderous thing... why did we wait??
No idea bro. I'm just waiting for my inline fan to show up..It's not suppose to be here until Tuesday so right now I have to keep my light at 20" or they start showing signs of heat stress :(
 

stoneslacker

Well-Known Member
Hey guys I am just wondering what you think the best way to vent my cool tube?? I have flexible ducting I'm thinking of running off one end running it outside my tent with a inline fan sucking air from outside across the bulb and exhuasting to the other end of the cool tube. I have a oscillating fan running in there and the lights are about 20" above the girls right now...What do you guys think? I'm open to all ideas as I want my girls to thrive.
Are you planning to run a carbon filter for odor control? Either way you still need to vent the air from inside your tent or grow area. IMO a cooltube is not needed on a 250w. With just a fan blowing between my hood and canopy I can get as close as 3in but I stay around 5 with the best results.

If you are running the cool tube you should use a piece of y-duct and run one intake to your cool tube and one to vent stale air from your tent. If planning on using odor control make sure to match the cfm with your intake fan size.
 

brettsog

Well-Known Member
i ran my 250w @ 6" with no air circulation last run and temps at canopy rarely went over 28/81 during the summer. gonna have to go 8-10 this run but with supplemental cfls to help spread the light over my screen, and i agree with both of you guys with the whole hps thing. the bud growth was massive compared to my cfl run. i was running 330w of cfls as well. poor results. but that was my growing skill tbh.
 

L33tGanjaMan

Well-Known Member
I just changed my 250w HPS in my tent for my newly purchased 300w LED panel.. i just pray i am gonna get better results than i would with my 250.. I am nervous but things seem to be going well at the minute. :hug:

You can see my recent grow in my Sig... Missing Sog Style

Next run i am gonna throw the LED panel head to head with the 250 HPS with the same packs of beans, that way i can see and compare results without prefference, for now i am sceptical.. time will tell though.
 

giggles26

Well-Known Member
Are you planning to run a carbon filter for odor control? Either way you still need to vent the air from inside your tent or grow area. IMO a cooltube is not needed on a 250w. With just a fan blowing between my hood and canopy I can get as close as 3in but I stay around 5 with the best results.

If you are running the cool tube you should use a piece of y-duct and run one intake to your cool tube and one to vent stale air from your tent. If planning on using odor control make sure to match the cfm with your intake fan size.
Well today I just ran my new ducting with an inline fan sucking air from outside in over the cool tube and then back out exhausting to the outside of the tent. After doing this today with my fan running inside it has brought my temps down 8 degrees and am able to now be around 6-9" from the canopy with no problems.

Yes I plan on running a carbon filter I just have not yet decided on what one. I have a 300cfm inline fan. Any ideas on some good carbon filters.

Thanks for helping though man!
 

giggles26

Well-Known Member
i ran my 250w @ 6" with no air circulation last run and temps at canopy rarely went over 28/81 during the summer. gonna have to go 8-10 this run but with supplemental cfls to help spread the light over my screen, and i agree with both of you guys with the whole hps thing. the bud growth was massive compared to my cfl run. i was running 330w of cfls as well. poor results. but that was my growing skill tbh.
How big of area were your growing in? Just curious as to what else I can do to make sure they are happy. And I don't think I'll ever go back to flowering with cfl. My first run wasn't very sucessful. Got a whopping 8 grams dry lol. But hey It's a learning experience right? Part of it was due to me(well actually probably most of it was me) but oh well. Everyday I'm seeing new white hairs thrown and I couldn't be happier.
 

giggles26

Well-Known Member
I just changed my 250w HPS in my tent for my newly purchased 300w LED panel.. i just pray i am gonna get better results than i would with my 250.. I am nervous but things seem to be going well at the minute. :hug:

You can see my recent grow in my Sig... Missing Sog Style

Next run i am gonna throw the LED panel head to head with the 250 HPS with the same packs of beans, that way i can see and compare results without prefference, for now i am sceptical.. time will tell though.
Yea man I am very skeptical to a LED panel. I thought about buying one but I'm not so sure it's where its at. I think its more a hype really. But hey deff let me know how it turns out.

I will have to check out your grow bro. You can check mine out also.
 
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