400w Club-Show Off Your 400w Pride And Joy

burnonedown21

burnonedown21

Member
Well ambient temps in the house are usually around 70. I am pumping the hot air into a my attic but what I'm worried about is having air being delivered to my grow room through the attic (away from hot air output). Its cold in the attic and I'm afraid that temps will drop if I pump to much air back into the room, but then I'm afraid that if I dont pump in enough cold air it will get to hot. I think I might just build a hood vent and have the fan hooked up to a thermostat to trigger it if it gets to cold and turn it off if it gets to hot
 
greenfirekilla420

greenfirekilla420

Well-Known Member
Your not gonna want to pull air from the attic in to your room as in intake. Your just gonna be zeroing out your exhaust. Pull in fresh air from the bottom of the room. Remember hot air rises and the cooler air falls.

:leaf::peace::leaf:
 
Integra21

Integra21

Well-Known Member
not sure if he expressed it correctly, but an attic intake is bad just because the temp up there varies greatly on a daily basis. In winter you have temps anywhere between 20F-60F and in summer anywhere between 75F-120F which will cause major problems maintaining a warm enough temp in winter and even bigger problems keeping the temps down in summer. Personally, I would use the exhaust where you have it but hooked up to your light to air cool it and make a passive intake into the room next to it or the basement if you have one. Some people say not to hook the exhaust up to your light, but that is how my setup has been for 9 months now and it works like a charm.
 
H

hounddog44

Member
Dr.RR said:
First post in this thread for me! I'm currently on my first grow using HID lighting. I am using a Digital Greenhouse 400W Electronic Ballast. Vegged under Agro Max MH and flowering under Agro Max HPS. Had to use the HPS for half the veg state because my MH blew 2 weeks into the grow. Anyway, here's a couple pics from my grow, 23 days into flowering. bongsmilie
Click to expand...
How far are the tops away from the lights?
 
lightsgreenaction

lightsgreenaction

Well-Known Member
Check out my 400w grow on my signature below.

Bout to upgrade my room to have a mother/clone box (light tight) in the bottom and have the flowering plants sitting on top of it, will still have room above to grow plenty tall.

Veg box is going to have a 2ft x 8 bulb T5 and a homemade clone box.

Will be adding a lot of pics soon of the new upgrades.
 
N

niteowljr

Active Member
These were from my last grow in a homebox xl tent with a 400 watt cooltube.The last pic is from the previous grow in my 2'x3'x4' tall box using the same cooltube.The first pics are white rhino and the last pic is a blueberry scrogged.peace.
 

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Reiss

Reiss

Well-Known Member
time to show off my white widow. 9 days flowering. the screen has worked out great! 30 tops so far all under a 400W HPS.
Pistles are shooting out everywhere....very exciting!
Started feeding her (alll Biobizz organic range) Bloom, Topmax & molasses (once a week)



 
hardroc

hardroc

New Member
Reiss said:
time to show off my white widow. 9 days flowering. the screen has worked out great! 30 tops so far all under a 400W HPS.
Pistles are shooting out everywhere....very exciting!
Started feeding her (alll Biobizz organic range) Bloom, Topmax & molasses (once a week)



Click to expand...

hey man nice setup, the ladies are looking very sexy. I really love to see what we can grow with a 400 watt.
One question though, are you going to cut away the lower growth? I hear it focuses more energy on your shoots that are left and more energy means more bud. I took all the lower growth off my bonzia and it didn't faze her a bit, and now air can move freely under the canopy.
Looking good though bro
keep it real.........keep it green
 
Reiss

Reiss

Well-Known Member
hardroc said:
hey man nice setup, the ladies are looking very sexy. I really love to see what we can grow with a 400 watt.
One question though, are you going to cut away the lower growth? I hear it focuses more energy on your shoots that are left and more energy means more bud. I took all the lower growth off my bonzia and it didn't faze her a bit, and now air can move freely under the canopy.
Looking good though bro
keep it real.........keep it green
Click to expand...
Thanks. That's only 1 plant by the way.
I'm really not sure about cutting the bottom growth during flowering. She had a really good trim during veg and I think cutting her whilst flowering might cause unnecessary stress.
 
grow4joe

grow4joe

Active Member
Hey peeps... :joint:
Thought i'd update on here real quick....
Day 18 of flowering....
Big Bang.......
BioBizz Light Mix
BioBizz Grow, Bloom and Alg-A-Mic.....
:mrgreen:



:peace:

.G4J.
 
BigSkyBudTHC

BigSkyBudTHC

Active Member
Reiss said:
Thanks. That's only 1 plant by the way.
I'm really not sure about cutting the bottom growth during flowering. She had a really good trim during veg and I think cutting her whilst flowering might cause unnecessary stress.
Click to expand...
i wouldn't cut anything during flowering.
 
DoeEyed

DoeEyed

Well-Known Member
Here are my oldest girls, under a pair of 400w. They are a little over five weeks in flower. Train Wreck on the outsides, Moby Dick in the middle. They were vegged for eight weeks under CFL's.
The closeup is Moby Dick, she's going to be finishing a couple weeks faster than the TW, I think.
 

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hardroc

hardroc

New Member
DoeEyed said:
Here are my oldest girls, under a pair of 400w. They are a little over five weeks in flower. Train Wreck on the outsides, Moby Dick in the middle. They were vegged for eight weeks under CFL's.
The closeup is Moby Dick, she's going to be finishing a couple weeks faster than the TW, I think.
Click to expand...
Looking very nice, lots a crystals
 
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